Finding the Fourth Proportional to 5,157,565.65, 7,117,023.69 and 2,982,249.90
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Solution
The fourth proportional to 5,157,565.65, 7,117,023.69 and 2,982,249.90 is: 4,115,263.79
Step by Step Solution
- Step 1: Write the proportion equation
5,157,565.65 : 7,117,023.69 = 2,982,249.90 : x - Step 2: Convert to fraction form
5,157,565.65/7,117,023.69 = 2,982,249.90/x - Step 3: Cross multiply
5,157,565.65x = 7,117,023.69 × 2,982,249.90 - Step 4: Simplify right side
5,157,565.65x = 21,224,743,187,800.13 - Step 5: Solve for x
x = 21,224,743,187,800.13/5,157,565.65 - Step 6: Final answer
x = 4,115,263.79
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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.