Let the unknown amount in first quarter be x
4 million = 1/3
x = 1 (whole amount)
we simplify the equation
x 1/3 = 4 → x = 4 × 3/1 → x = 4 x 3 → x = 12 million
First quarter amount is 12 + 4 = 16 million
Let y be the unknown amount for third quarter.
4 million = 4/5
y = 1 (whole amount)
we simplify again:
y 4/5 = 4 → y = 4 × 5/4 → y = 20 / 4 → y = 5 million
Second quarter amount is 5 million
Total amount for all three quarters:
16 + 4 + 5 = 25 million