Finding the Fourth Proportional to 115,981,342.92, 160,049,948.76 and 63,767,271.96
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Solution
The fourth proportional to 115,981,342.92, 160,049,948.76 and 63,767,271.96 is: 87,996,468.68
Step by Step Solution
- Step 1: Write the proportion equation
115,981,342.92 : 160,049,948.76 = 63,767,271.96 : x - Step 2: Convert to fraction form
115,981,342.92/160,049,948.76 = 63,767,271.96/x - Step 3: Cross multiply
115,981,342.92x = 160,049,948.76 × 63,767,271.96 - Step 4: Simplify right side
115,981,342.92x = 10,205,948,609,762,984 - Step 5: Solve for x
x = 10,205,948,609,762,984/115,981,342.92 - Step 6: Final answer
x = 87,996,468.68
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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.