Finding the Fourth Proportional to 3,988,945.48, 5,981,318.70 and 2,727,133.96
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Solution
The fourth proportional to 3,988,945.48, 5,981,318.70 and 2,727,133.96 is: 4,089,265.56
Step by Step Solution
- Step 1: Write the proportion equation
3,988,945.48 : 5,981,318.70 = 2,727,133.96 : x - Step 2: Convert to fraction form
3,988,945.48/5,981,318.70 = 2,727,133.96/x - Step 3: Cross multiply
3,988,945.48x = 5,981,318.70 × 2,727,133.96 - Step 4: Simplify right side
3,988,945.48x = 16,311,857,352,353.05 - Step 5: Solve for x
x = 16,311,857,352,353.05/3,988,945.48 - Step 6: Final answer
x = 4,089,265.56
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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.