Finding the Fourth Proportional to 5,754,061.48, 7,940,565.74 and 3,175,742.20
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Solution
The fourth proportional to 5,754,061.48, 7,940,565.74 and 3,175,742.20 is: 4,382,502.65
Step by Step Solution
- Step 1: Write the proportion equation
5,754,061.48 : 7,940,565.74 = 3,175,742.20 : x - Step 2: Convert to fraction form
5,754,061.48/7,940,565.74 = 3,175,742.20/x - Step 3: Cross multiply
5,754,061.48x = 7,940,565.74 × 3,175,742.20 - Step 4: Simplify right side
5,754,061.48x = 25,217,189,712,392.23 - Step 5: Solve for x
x = 25,217,189,712,392.23/5,754,061.48 - Step 6: Final answer
x = 4,382,502.65
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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.