Answer:
Balloon loan
Step-by-step explanation:
Balloon loan is a type of a relatively short term loan common in the commercial lending where only a portion of the principal amount , the interest is amortized over that period and the total outstanding amount , the principal is the final payment at the end of the loan period.
This makes the final payment to be significantly high compared to the other payments made over the entire loan period , hence the name balloon (inflated ) name given to it.