Home / 219,669,538.72-329,493,659.19-81,522,077.71

Finding the Fourth Proportional to 219,669,538.72, 329,493,659.19 and 81,522,077.71

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Solution

The fourth proportional to 219,669,538.72, 329,493,659.19 and 81,522,077.71 is: 122,279,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,669,538.72 : 329,493,659.19 = 81,522,077.71 : x
  2. Step 2: Convert to fraction form
    219,669,538.72/329,493,659.19 = 81,522,077.71/x
  3. Step 3: Cross multiply
    219,669,538.72x = 329,493,659.19 × 81,522,077.71
  4. Step 4: Simplify right side
    219,669,538.72x = 26,861,007,689,439,432
  5. Step 5: Solve for x
    x = 26,861,007,689,439,432/219,669,538.72
  6. Step 6: Final answer
    x = 122,279,164.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.