Finding the Fourth Proportional to 86,581,404.10, 129,872,106.15 and 53,702,920.90
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Solution
The fourth proportional to 86,581,404.10, 129,872,106.15 and 53,702,920.90 is: 80,554,381.35
Step by Step Solution
- Step 1: Write the proportion equation
86,581,404.10 : 129,872,106.15 = 53,702,920.90 : x - Step 2: Convert to fraction form
86,581,404.10/129,872,106.15 = 53,702,920.90/x - Step 3: Cross multiply
86,581,404.10x = 129,872,106.15 × 53,702,920.90 - Step 4: Simplify right side
86,581,404.10x = 6,974,511,443,689,854 - Step 5: Solve for x
x = 6,974,511,443,689,854/86,581,404.10 - Step 6: Final answer
x = 80,554,381.35
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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.