Finding the Fourth Proportional to 57,690,432.08, 79,612,759.74 and 31,584,943.02
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Solution
The fourth proportional to 57,690,432.08, 79,612,759.74 and 31,584,943.02 is: 43,587,201.37
Step by Step Solution
- Step 1: Write the proportion equation
57,690,432.08 : 79,612,759.74 = 31,584,943.02 : x - Step 2: Convert to fraction form
57,690,432.08/79,612,759.74 = 31,584,943.02/x - Step 3: Cross multiply
57,690,432.08x = 79,612,759.74 × 31,584,943.02 - Step 4: Simplify right side
57,690,432.08x = 2,514,564,480,052,850 - Step 5: Solve for x
x = 2,514,564,480,052,850/57,690,432.08 - Step 6: Final answer
x = 43,587,201.37
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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.