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Finding the Fourth Proportional to 18,100,368.78, 24,978,508.92 and 9,951,606.78

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Solution

The fourth proportional to 18,100,368.78, 24,978,508.92 and 9,951,606.78 is: 13,733,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100,368.78 : 24,978,508.92 = 9,951,606.78 : x
  2. Step 2: Convert to fraction form
    18,100,368.78/24,978,508.92 = 9,951,606.78/x
  3. Step 3: Cross multiply
    18,100,368.78x = 24,978,508.92 × 9,951,606.78
  4. Step 4: Simplify right side
    18,100,368.78x = 248,576,298,722,562.47
  5. Step 5: Solve for x
    x = 248,576,298,722,562.47/18,100,368.78
  6. Step 6: Final answer
    x = 13,733,217.36

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1.5x scale

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.