Home / 18,466,869.80-25,471,062.78-12,961,472.96

Finding the Fourth Proportional to 18,466,869.80, 25,471,062.78 and 12,961,472.96

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Solution

The fourth proportional to 18,466,869.80, 25,471,062.78 and 12,961,472.96 is: 17,877,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466,869.80 : 25,471,062.78 = 12,961,472.96 : x
  2. Step 2: Convert to fraction form
    18,466,869.80/25,471,062.78 = 12,961,472.96/x
  3. Step 3: Cross multiply
    18,466,869.80x = 25,471,062.78 × 12,961,472.96
  4. Step 4: Simplify right side
    18,466,869.80x = 330,142,491,485,432.44
  5. Step 5: Solve for x
    x = 330,142,491,485,432.44/18,466,869.80
  6. Step 6: Final answer
    x = 17,877,555.59

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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.