1. Warren Buffett

Age: 77
Fortune: self made
Source: Berkshire Hathaway
Net Worth: $62.0 bil
Country Of Citizenship: United States
Industry: Investments
Marital Status: widowed, remarried, 3 children

 

2. Carlos Slim Helu & family

Age: 68
Fortune: self made
Source: telecom
Net Worth: $60.0 bil
Country of Citizenship: Mexico
Industry: Communications
Marital Status: widowed, 6 children

 

3. William Gates III

Age: 52
Fortune: self made
Source: Microsoft
Net Worth: $58.0 bil
Country of Citizenship: United States
Industry: Software
Marital Status: married, 3 children

 

4. Lakshmi Mittal

Age: 57
Fortune: inherited and growing
Source: steel
Net Worth: $45.0 bil
Country of Citizenship: India
Industry: Manufacturing
Marital Status: married, 2 children