Finding the Fourth Proportional to 57,717,108.13, 79,649,685.99 and 31,255,507.57
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Solution
The fourth proportional to 57,717,108.13, 79,649,685.99 and 31,255,507.57 is: 43,132,642.02
Step by Step Solution
- Step 1: Write the proportion equation
57,717,108.13 : 79,649,685.99 = 31,255,507.57 : x - Step 2: Convert to fraction form
57,717,108.13/79,649,685.99 = 31,255,507.57/x - Step 3: Cross multiply
57,717,108.13x = 79,649,685.99 × 31,255,507.57 - Step 4: Simplify right side
57,717,108.13x = 2,489,491,363,408,568 - Step 5: Solve for x
x = 2,489,491,363,408,568/57,717,108.13 - Step 6: Final answer
x = 43,132,642.02
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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.