Home / 55,207,384.10-82,811,076.15-18,856,819.70

Finding the Fourth Proportional to 55,207,384.10, 82,811,076.15 and 18,856,819.70

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Solution

The fourth proportional to 55,207,384.10, 82,811,076.15 and 18,856,819.70 is: 28,285,229.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207,384.10 : 82,811,076.15 = 18,856,819.70 : x
  2. Step 2: Convert to fraction form
    55,207,384.10/82,811,076.15 = 18,856,819.70/x
  3. Step 3: Cross multiply
    55,207,384.10x = 82,811,076.15 × 18,856,819.70
  4. Step 4: Simplify right side
    55,207,384.10x = 1,561,553,532,123,520.25
  5. Step 5: Solve for x
    x = 1,561,553,532,123,520.25/55,207,384.10
  6. Step 6: Final answer
    x = 28,285,229.55

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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.