4. Iris Fontbona & family

•  Net Worth: $17.4 B                                                                      
•  Source of Wealth: mining
•  Citizen: Chile
•  Age: 70

Inheriting wealth from her husband, Iris Fontbona is the fourth richest female in the world. She ranks first in country of Chile in terms of net worth. She ranks #35in the list of Forbes Billionaires. She, along with her family, controls Antofagasta which is one of the largest copper miners on planet Earth. She also controls , through holding company Quinenco, the country’s second-largest bank (Banco de Chile), largest brewer (CCU) and the biggest shipping company in Latin America (CSAV).