Home / 101,624,751.38-140,243,432.38-55,215,780.32

Finding the Fourth Proportional to 101,624,751.38, 140,243,432.38 and 55,215,780.32

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Solution

The fourth proportional to 101,624,751.38, 140,243,432.38 and 55,215,780.32 is: 76,198,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,624,751.38 : 140,243,432.38 = 55,215,780.32 : x
  2. Step 2: Convert to fraction form
    101,624,751.38/140,243,432.38 = 55,215,780.32/x
  3. Step 3: Cross multiply
    101,624,751.38x = 140,243,432.38 × 55,215,780.32
  4. Step 4: Simplify right side
    101,624,751.38x = 7,743,650,553,829,423
  5. Step 5: Solve for x
    x = 7,743,650,553,829,423/101,624,751.38
  6. Step 6: Final answer
    x = 76,198,469.85

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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.