10. Mohamed Mansour

•  Net Worth: $2.1 B                                                                      
•  Source of Wealth: diversified
•  Citizen: Africa
•  Age: 65

Another Egyptian billionaire on this top 10 list, Mohamed Mansour holds an engineering degree from North Carolina University of America and management degree from Auburn University. He has a diversified business which includes investments in retail, automobiles, banking and foods.