Finding the Fourth Proportional to 61,709,437.87, 85,167,699.75 and 38,195,516.74
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Solution
The fourth proportional to 61,709,437.87, 85,167,699.75 and 38,195,516.74 is: 52,715,182.86
Step by Step Solution
- Step 1: Write the proportion equation
61,709,437.87 : 85,167,699.75 = 38,195,516.74 : x - Step 2: Convert to fraction form
61,709,437.87/85,167,699.75 = 38,195,516.74/x - Step 3: Cross multiply
61,709,437.87x = 85,167,699.75 × 38,195,516.74 - Step 4: Simplify right side
61,709,437.87x = 3,253,024,301,508,419 - Step 5: Solve for x
x = 3,253,024,301,508,419/61,709,437.87 - Step 6: Final answer
x = 52,715,182.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.