FIRST we have to find 1 Canadian dollar.


THEN, we give the man all the money we've got. That will be exactly enough.

Cost of pie=10 billion and 1 real dollar.
10 billion Canadian dollars = ALMOST 1 real dollar.
10 billion and 1 Canadian dollars = 1 real dollar.
We have: 10 billion real dollars and 10 billion Candian dollars, i.e. 10 billion and ALMOST 1 real dollar.

(So is there some kind of super-hyper-inflation in this world, or are the pies just really, really good? ).