Home / 87,791,401.38-120,875,728.66-74,534,356.96

Finding the Fourth Proportional to 87,791,401.38, 120,875,728.66 and 74,534,356.96

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Solution

The fourth proportional to 87,791,401.38, 120,875,728.66 and 74,534,356.96 is: 102,622,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,791,401.38 : 120,875,728.66 = 74,534,356.96 : x
  2. Step 2: Convert to fraction form
    87,791,401.38/120,875,728.66 = 74,534,356.96/x
  3. Step 3: Cross multiply
    87,791,401.38x = 120,875,728.66 × 74,534,356.96
  4. Step 4: Simplify right side
    87,791,401.38x = 9,009,394,707,744,542
  5. Step 5: Solve for x
    x = 9,009,394,707,744,542/87,791,401.38
  6. Step 6: Final answer
    x = 102,622,746.26

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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.