Finding the Fourth Proportional to 287,381,324.96, 431,344,517.68 and 177,875,249.76
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Solution
The fourth proportional to 287,381,324.96, 431,344,517.68 and 177,875,249.76 is: 266,981,557.78
Step by Step Solution
- Step 1: Write the proportion equation
287,381,324.96 : 431,344,517.68 = 177,875,249.76 : x - Step 2: Convert to fraction form
287,381,324.96/431,344,517.68 = 177,875,249.76/x - Step 3: Cross multiply
287,381,324.96x = 431,344,517.68 × 177,875,249.76 - Step 4: Simplify right side
287,381,324.96x = 76,725,513,814,936,736 - Step 5: Solve for x
x = 76,725,513,814,936,736/287,381,324.96 - Step 6: Final answer
x = 266,981,557.78
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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.