Home / 68,974,532.86-95,149,236.99-42,859,128.46

Finding the Fourth Proportional to 68,974,532.86, 95,149,236.99 and 42,859,128.46

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Solution

The fourth proportional to 68,974,532.86, 95,149,236.99 and 42,859,128.46 is: 59,123,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,974,532.86 : 95,149,236.99 = 42,859,128.46 : x
  2. Step 2: Convert to fraction form
    68,974,532.86/95,149,236.99 = 42,859,128.46/x
  3. Step 3: Cross multiply
    68,974,532.86x = 95,149,236.99 × 42,859,128.46
  4. Step 4: Simplify right side
    68,974,532.86x = 4,078,013,371,025,393.50
  5. Step 5: Solve for x
    x = 4,078,013,371,025,393.50/68,974,532.86
  6. Step 6: Final answer
    x = 59,123,464.88

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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.