Home / 85,517,363.20-128,276,044.80-74,755,682.95

Finding the Fourth Proportional to 85,517,363.20, 128,276,044.80 and 74,755,682.95

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Solution

The fourth proportional to 85,517,363.20, 128,276,044.80 and 74,755,682.95 is: 112,133,524.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,517,363.20 : 128,276,044.80 = 74,755,682.95 : x
  2. Step 2: Convert to fraction form
    85,517,363.20/128,276,044.80 = 74,755,682.95/x
  3. Step 3: Cross multiply
    85,517,363.20x = 128,276,044.80 × 74,755,682.95
  4. Step 4: Simplify right side
    85,517,363.20x = 9,589,363,335,148,796
  5. Step 5: Solve for x
    x = 9,589,363,335,148,796/85,517,363.20
  6. Step 6: Final answer
    x = 112,133,524.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.