Home / 27,960,439.12-38,565,529.89-18,663,321.70

Finding the Fourth Proportional to 27,960,439.12, 38,565,529.89 and 18,663,321.70

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Solution

The fourth proportional to 27,960,439.12, 38,565,529.89 and 18,663,321.70 is: 25,742,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960,439.12 : 38,565,529.89 = 18,663,321.70 : x
  2. Step 2: Convert to fraction form
    27,960,439.12/38,565,529.89 = 18,663,321.70/x
  3. Step 3: Cross multiply
    27,960,439.12x = 38,565,529.89 × 18,663,321.70
  4. Step 4: Simplify right side
    27,960,439.12x = 719,760,890,868,035.62
  5. Step 5: Solve for x
    x = 719,760,890,868,035.62/27,960,439.12
  6. Step 6: Final answer
    x = 25,742,116.85

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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.