Home / 87,181,180.50-120,286,085.49-60,689,845.38

Finding the Fourth Proportional to 87,181,180.50, 120,286,085.49 and 60,689,845.38

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Solution

The fourth proportional to 87,181,180.50, 120,286,085.49 and 60,689,845.38 is: 83,735,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,181,180.50 : 120,286,085.49 = 60,689,845.38 : x
  2. Step 2: Convert to fraction form
    87,181,180.50/120,286,085.49 = 60,689,845.38/x
  3. Step 3: Cross multiply
    87,181,180.50x = 120,286,085.49 × 60,689,845.38
  4. Step 4: Simplify right side
    87,181,180.50x = 7,300,143,929,753,562
  5. Step 5: Solve for x
    x = 7,300,143,929,753,562/87,181,180.50
  6. Step 6: Final answer
    x = 83,735,318.65

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1.5x scale

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.