Finding the Fourth Proportional to 21,577,892.80, 32,366,839.20 and 8,791,427.20
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Solution
The fourth proportional to 21,577,892.80, 32,366,839.20 and 8,791,427.20 is: 13,187,140.80
Step by Step Solution
- Step 1: Write the proportion equation
21,577,892.80 : 32,366,839.20 = 8,791,427.20 : x - Step 2: Convert to fraction form
21,577,892.80/32,366,839.20 = 8,791,427.20/x - Step 3: Cross multiply
21,577,892.80x = 32,366,839.20 × 8,791,427.20 - Step 4: Simplify right side
21,577,892.80x = 284,550,710,520,906.19 - Step 5: Solve for x
x = 284,550,710,520,906.19/21,577,892.80 - Step 6: Final answer
x = 13,187,140.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.