Finding the Fourth Proportional to 527,689,648.13, 728,212,572.32 and 292,740,316.02
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Solution
The fourth proportional to 527,689,648.13, 728,212,572.32 and 292,740,316.02 is: 403,982,112.04
Step by Step Solution
- Step 1: Write the proportion equation
527,689,648.13 : 728,212,572.32 = 292,740,316.02 : x - Step 2: Convert to fraction form
527,689,648.13/728,212,572.32 = 292,740,316.02/x - Step 3: Cross multiply
527,689,648.13x = 728,212,572.32 × 292,740,316.02 - Step 4: Simplify right side
527,689,648.13x = 213,177,178,549,230,208 - Step 5: Solve for x
x = 213,177,178,549,230,208/527,689,648.13 - Step 6: Final answer
x = 403,982,112.04
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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.