15. Mark Zuckerberg: — Net worth: $13.3 billion
Age: 28
Position: CEO at Facebook
Overall Rank: 66 (tie)
Source: Forbes
14. Tadashi Yanai: — Net worth: $13.3 billion
Age: 64
Position: Founder and CEO at Fast Retailing
Overall Rank: 66 (tie)
Source: Forbes
13. Vagit Alekperov: — Net worth: $14.8 billion
Age: 55
Position: CEO at Lukoil
Overall Rank: 55
Source: Forbes
12. Steve Ballmer: — Net worth: $15.2 billion
Age: 56
Position: CEO at Microsoft
Overall Rank: 51
Source: Forbes
11. Michael Dell: — Net worth: $15.3 billion
Age: 48
Position: Charmian and CEO at Dell
Overall Rank: 49
Note: Dell struck a deal to take the company private with Silver Lake
Source: Forbes
10. Leonid Mikhelson: — Net worth: $16.1 billion
Age: 57
Position: CEO at Novatek
Overall Rank: 47
Source: Forbes
9. Aliko Dangote: — Net worth: $16.5 billion
Age: 55
Position: Chairman and CEO at Dangote Group
Overall Rank: 43
Source: Forbes
8. Lakshmi Mittal: — Net worth: $16.5 billion
Age: 62
Position: Chairman and CEO of ArcelorMittal
Overall Rank: 41
Source: Forbes
7. Mukesh Ambani: — Net worth: $21.5 billion
Age: 55
Position: Chairman and Managing Director (equivalent to CEO) at Reliance Industries
Overall Rank: 22
Source: Forbes
6. Larry Page: — Net worth: $23 billion
Age: 39
Position: CEO at Google
Overall Rank: 20
Source: Forbes
5. Jeff Bezos: — Net worth: $25.2 billion
Age: 49
Position: Chairman and CEO at Amazon.com
Overall Rank: 19
Source: Forbes
4. Sheldon Adelson: — Net worth: $26.5 billion
Age: 79
Position: Chairman and CEO at Las Vegas Sands
Overall Rank: 15
Source: Forbes
3. Bernard Arnault — Net worth: $29 billion
Age: 63
Position: Chairman and CEO at LMVH (Louis Vuitton Moët Hennessy)
Overall Rank: 10
Source: Forbes
2. Larry Ellison — Net worth: $43 billion
Age: 68
Position: Co-founder and CEO at Oracle
Overall Rank: 5
Source: Forbes
1. Warren Buffet -— Net worth: $53.5 billion
Age: 82
Position: Chairman and CEO at Berkshire Hathaway
Overall Rank: 4
Source: Forbes
