Home / 71,416,042.71-98,555,218.79-40,061,042.19

Finding the Fourth Proportional to 71,416,042.71, 98,555,218.79 and 40,061,042.19

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Solution

The fourth proportional to 71,416,042.71, 98,555,218.79 and 40,061,042.19 is: 55,284,843.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,416,042.71 : 98,555,218.79 = 40,061,042.19 : x
  2. Step 2: Convert to fraction form
    71,416,042.71/98,555,218.79 = 40,061,042.19/x
  3. Step 3: Cross multiply
    71,416,042.71x = 98,555,218.79 × 40,061,042.19
  4. Step 4: Simplify right side
    71,416,042.71x = 3,948,224,777,790,565
  5. Step 5: Solve for x
    x = 3,948,224,777,790,565/71,416,042.71
  6. Step 6: Final answer
    x = 55,284,843.96

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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.