Home / 82,189,344.28-113,421,012-47,381,868.76

Finding the Fourth Proportional to 82,189,344.28, 113,421,012 and 47,381,868.76

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Solution

The fourth proportional to 82,189,344.28, 113,421,012 and 47,381,868.76 is: 65,386,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,189,344.28 : 113,421,012 = 47,381,868.76 : x
  2. Step 2: Convert to fraction form
    82,189,344.28/113,421,012 = 47,381,868.76/x
  3. Step 3: Cross multiply
    82,189,344.28x = 113,421,012 × 47,381,868.76
  4. Step 4: Simplify right side
    82,189,344.28x = 5,374,099,505,210,385
  5. Step 5: Solve for x
    x = 5,374,099,505,210,385/82,189,344.28
  6. Step 6: Final answer
    x = 65,386,815.68

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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.