Finding the Fourth Proportional to 3,924,215.91, 5,414,471.90 and 2,291,696.55
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Solution
The fourth proportional to 3,924,215.91, 5,414,471.90 and 2,291,696.55 is: 3,161,988.75
Step by Step Solution
- Step 1: Write the proportion equation
3,924,215.91 : 5,414,471.90 = 2,291,696.55 : x - Step 2: Convert to fraction form
3,924,215.91/5,414,471.90 = 2,291,696.55/x - Step 3: Cross multiply
3,924,215.91x = 5,414,471.90 × 2,291,696.55 - Step 4: Simplify right side
3,924,215.91x = 12,408,326,561,843.46 - Step 5: Solve for x
x = 12,408,326,561,843.46/3,924,215.91 - Step 6: Final answer
x = 3,161,988.75
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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.