Finding the Fourth Proportional to 3,687,851.88, 5,077,654.65 and 3,135,481.32
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Solution
The fourth proportional to 3,687,851.88, 5,077,654.65 and 3,135,481.32 is: 4,317,117.88
Step by Step Solution
- Step 1: Write the proportion equation
3,687,851.88 : 5,077,654.65 = 3,135,481.32 : x - Step 2: Convert to fraction form
3,687,851.88/5,077,654.65 = 3,135,481.32/x - Step 3: Cross multiply
3,687,851.88x = 5,077,654.65 × 3,135,481.32 - Step 4: Simplify right side
3,687,851.88x = 15,920,891,304,486.14 - Step 5: Solve for x
x = 15,920,891,304,486.14/3,687,851.88 - Step 6: Final answer
x = 4,317,117.88
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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.