Home / 20,670,342.66-28,527,789.12-11,853,244.40

Finding the Fourth Proportional to 20,670,342.66, 28,527,789.12 and 11,853,244.40

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Solution

The fourth proportional to 20,670,342.66, 28,527,789.12 and 11,853,244.40 is: 16,359,034.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670,342.66 : 28,527,789.12 = 11,853,244.40 : x
  2. Step 2: Convert to fraction form
    20,670,342.66/28,527,789.12 = 11,853,244.40/x
  3. Step 3: Cross multiply
    20,670,342.66x = 28,527,789.12 × 11,853,244.40
  4. Step 4: Simplify right side
    20,670,342.66x = 338,146,856,631,020.94
  5. Step 5: Solve for x
    x = 338,146,856,631,020.94/20,670,342.66
  6. Step 6: Final answer
    x = 16,359,034.88

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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.