Home / 13,348,876.38-20,123,367.09-12,459,037.68

Finding the Fourth Proportional to 13,348,876.38, 20,123,367.09 and 12,459,037.68

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Solution

The fourth proportional to 13,348,876.38, 20,123,367.09 and 12,459,037.68 is: 18,781,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,876.38 : 20,123,367.09 = 12,459,037.68 : x
  2. Step 2: Convert to fraction form
    13,348,876.38/20,123,367.09 = 12,459,037.68/x
  3. Step 3: Cross multiply
    13,348,876.38x = 20,123,367.09 × 12,459,037.68
  4. Step 4: Simplify right side
    13,348,876.38x = 250,717,788,659,869.97
  5. Step 5: Solve for x
    x = 250,717,788,659,869.97/13,348,876.38
  6. Step 6: Final answer
    x = 18,781,939.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.