Finding the Fourth Proportional to 408,475,306.91, 563,618,829.16 and 243,478,229.15
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Solution
The fourth proportional to 408,475,306.91, 563,618,829.16 and 243,478,229.15 is: 335,954,002.89
Step by Step Solution
- Step 1: Write the proportion equation
408,475,306.91 : 563,618,829.16 = 243,478,229.15 : x - Step 2: Convert to fraction form
408,475,306.91/563,618,829.16 = 243,478,229.15/x - Step 3: Cross multiply
408,475,306.91x = 563,618,829.16 × 243,478,229.15 - Step 4: Simplify right side
408,475,306.91x = 137,228,914,439,473,184 - Step 5: Solve for x
x = 137,228,914,439,473,184/408,475,306.91 - Step 6: Final answer
x = 335,954,002.89
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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.