Finding the Fourth Proportional to 115,053,933.84, 172,581,545.97 and 38,376,751.56
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Solution
The fourth proportional to 115,053,933.84, 172,581,545.97 and 38,376,751.56 is: 57,565,342.55
Step by Step Solution
- Step 1: Write the proportion equation
115,053,933.84 : 172,581,545.97 = 38,376,751.56 : x - Step 2: Convert to fraction form
115,053,933.84/172,581,545.97 = 38,376,751.56/x - Step 3: Cross multiply
115,053,933.84x = 172,581,545.97 × 38,376,751.56 - Step 4: Simplify right side
115,053,933.84x = 6,623,119,113,531,410 - Step 5: Solve for x
x = 6,623,119,113,531,410/115,053,933.84 - Step 6: Final answer
x = 57,565,342.55
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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.