Finding the Fourth Proportional to 681,472,793.26, 940,432,456.51 and 368,207,007.23
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Solution
The fourth proportional to 681,472,793.26, 940,432,456.51 and 368,207,007.23 is: 508,125,670.96
Step by Step Solution
- Step 1: Write the proportion equation
681,472,793.26 : 940,432,456.51 = 368,207,007.23 : x - Step 2: Convert to fraction form
681,472,793.26/940,432,456.51 = 368,207,007.23/x - Step 3: Cross multiply
681,472,793.26x = 940,432,456.51 × 368,207,007.23 - Step 4: Simplify right side
681,472,793.26x = 346,273,820,315,855,296 - Step 5: Solve for x
x = 346,273,820,315,855,296/681,472,793.26 - Step 6: Final answer
x = 508,125,670.96
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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.