Finding the Fourth Proportional to 396,522,402.91, 547,215,683.76 and 237,778,370.91
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Solution
The fourth proportional to 396,522,402.91, 547,215,683.76 and 237,778,370.91 is: 328,143,007.47
Step by Step Solution
- Step 1: Write the proportion equation
396,522,402.91 : 547,215,683.76 = 237,778,370.91 : x - Step 2: Convert to fraction form
396,522,402.91/547,215,683.76 = 237,778,370.91/x - Step 3: Cross multiply
396,522,402.91x = 547,215,683.76 × 237,778,370.91 - Step 4: Simplify right side
396,522,402.91x = 130,116,053,817,869,280 - Step 5: Solve for x
x = 130,116,053,817,869,280/396,522,402.91 - Step 6: Final answer
x = 328,143,007.47
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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.