Home / 20,693,654.88-28,555,877.52-12,428,806.24

Finding the Fourth Proportional to 20,693,654.88, 28,555,877.52 and 12,428,806.24

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Solution

The fourth proportional to 20,693,654.88, 28,555,877.52 and 12,428,806.24 is: 17,150,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,654.88 : 28,555,877.52 = 12,428,806.24 : x
  2. Step 2: Convert to fraction form
    20,693,654.88/28,555,877.52 = 12,428,806.24/x
  3. Step 3: Cross multiply
    20,693,654.88x = 28,555,877.52 × 12,428,806.24
  4. Step 4: Simplify right side
    20,693,654.88x = 354,915,468,709,251.75
  5. Step 5: Solve for x
    x = 354,915,468,709,251.75/20,693,654.88
  6. Step 6: Final answer
    x = 17,150,932.05

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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.