Finding the Fourth Proportional to 81,757,445.28, 122,687,223.62 and 54,482,876.19
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Solution
The fourth proportional to 81,757,445.28, 122,687,223.62 and 54,482,876.19 is: 81,758,337.63
Step by Step Solution
- Step 1: Write the proportion equation
81,757,445.28 : 122,687,223.62 = 54,482,876.19 : x - Step 2: Convert to fraction form
81,757,445.28/122,687,223.62 = 54,482,876.19/x - Step 3: Cross multiply
81,757,445.28x = 122,687,223.62 × 54,482,876.19 - Step 4: Simplify right side
81,757,445.28x = 6,684,352,814,583,304 - Step 5: Solve for x
x = 6,684,352,814,583,304/81,757,445.28 - Step 6: Final answer
x = 81,758,337.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.