Home / 20,146,885.13-27,801,890.38-10,979,331.05

Finding the Fourth Proportional to 20,146,885.13, 27,801,890.38 and 10,979,331.05

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Solution

The fourth proportional to 20,146,885.13, 27,801,890.38 and 10,979,331.05 is: 15,151,034.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,885.13 : 27,801,890.38 = 10,979,331.05 : x
  2. Step 2: Convert to fraction form
    20,146,885.13/27,801,890.38 = 10,979,331.05/x
  3. Step 3: Cross multiply
    20,146,885.13x = 27,801,890.38 × 10,979,331.05
  4. Step 4: Simplify right side
    20,146,885.13x = 305,246,158,339,886.69
  5. Step 5: Solve for x
    x = 305,246,158,339,886.69/20,146,885.13
  6. Step 6: Final answer
    x = 15,151,034.83

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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.