Finding the Fourth Proportional to 916,165,697.88, 1,375,539,948.18 and 657,239,769.48
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Solution
The fourth proportional to 916,165,697.88, 1,375,539,948.18 and 657,239,769.48 is: 986,786,080.89
Step by Step Solution
- Step 1: Write the proportion equation
916,165,697.88 : 1,375,539,948.18 = 657,239,769.48 : x - Step 2: Convert to fraction form
916,165,697.88/1,375,539,948.18 = 657,239,769.48/x - Step 3: Cross multiply
916,165,697.88x = 1,375,539,948.18 × 657,239,769.48 - Step 4: Simplify right side
916,165,697.88x = 904,059,558,452,354,432 - Step 5: Solve for x
x = 904,059,558,452,354,432/916,165,697.88 - Step 6: Final answer
x = 986,786,080.89
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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.