Poor family
When I saw this movie I heard they say that they owned 70 billon $ and i thougt like "No one can have that much money" so the next day I searched for the richest person ever lived and found out that John D. Rockefeller owned
200 BILLION DOLLARS!!!:O
Now that's what I call RICH!
Since "Richie Rich" is only a comic I think that they could have at least 500 billon dollars;)