Answer:
The trip to Colombia is priced less at $1,497.07.
Explanation:
Using the following spot inter-bank market on November 1, 2019,
1 USD = 3339.85 COP (Colombian Pesos) and
1 USD = 1.4455 AUD (Australian Dollars
5,000 Australian Dollars on that day would be equivalent to
= 
= $3,459.01
5,000,000 Colombian Pesos on that day would be equivalent to
= 
= $1,497.07
Considering the U.S Dollars equivalent of both cost, the trip to Colombia is priced less at $1,497.07.