Finding the Fourth Proportional to 3,863,678.56, 5,331,609.29 and 2,144,663.75
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Solution
The fourth proportional to 3,863,678.56, 5,331,609.29 and 2,144,663.75 is: 2,959,487.71
Step by Step Solution
- Step 1: Write the proportion equation
3,863,678.56 : 5,331,609.29 = 2,144,663.75 : x - Step 2: Convert to fraction form
3,863,678.56/5,331,609.29 = 2,144,663.75/x - Step 3: Cross multiply
3,863,678.56x = 5,331,609.29 × 2,144,663.75 - Step 4: Simplify right side
3,863,678.56x = 11,434,509,192,116.92 - Step 5: Solve for x
x = 11,434,509,192,116.92/3,863,678.56 - Step 6: Final answer
x = 2,959,487.71
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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.