Home / 71,342,398.50-98,449,215.21-40,402,789.26

Finding the Fourth Proportional to 71,342,398.50, 98,449,215.21 and 40,402,789.26

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Solution

The fourth proportional to 71,342,398.50, 98,449,215.21 and 40,402,789.26 is: 55,753,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,342,398.50 : 98,449,215.21 = 40,402,789.26 : x
  2. Step 2: Convert to fraction form
    71,342,398.50/98,449,215.21 = 40,402,789.26/x
  3. Step 3: Cross multiply
    71,342,398.50x = 98,449,215.21 × 40,402,789.26
  4. Step 4: Simplify right side
    71,342,398.50x = 3,977,622,894,942,016
  5. Step 5: Solve for x
    x = 3,977,622,894,942,016/71,342,398.50
  6. Step 6: Final answer
    x = 55,753,983.31

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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.