Finding the Fourth Proportional to 615,681,490.37, 924,995,552.36 and 394,785,615.07
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Solution
The fourth proportional to 615,681,490.37, 924,995,552.36 and 394,785,615.07 is: 593,123,138.80
Step by Step Solution
- Step 1: Write the proportion equation
615,681,490.37 : 924,995,552.36 = 394,785,615.07 : x - Step 2: Convert to fraction form
615,681,490.37/924,995,552.36 = 394,785,615.07/x - Step 3: Cross multiply
615,681,490.37x = 924,995,552.36 × 394,785,615.07 - Step 4: Simplify right side
615,681,490.37x = 365,174,938,071,654,272 - Step 5: Solve for x
x = 365,174,938,071,654,272/615,681,490.37 - Step 6: Final answer
x = 593,123,138.80
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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.