Finding the Fourth Proportional to 3,687,358.78, 5,088,536.94 and 2,138,933.62
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Solution
The fourth proportional to 3,687,358.78, 5,088,536.94 and 2,138,933.62 is: 2,951,717.85
Step by Step Solution
- Step 1: Write the proportion equation
3,687,358.78 : 5,088,536.94 = 2,138,933.62 : x - Step 2: Convert to fraction form
3,687,358.78/5,088,536.94 = 2,138,933.62/x - Step 3: Cross multiply
3,687,358.78x = 5,088,536.94 × 2,138,933.62 - Step 4: Simplify right side
3,687,358.78x = 10,884,042,737,577.92 - Step 5: Solve for x
x = 10,884,042,737,577.92/3,687,358.78 - Step 6: Final answer
x = 2,951,717.85
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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.