Home / 18,720,204.38-28,080,306.56-4,536,780.38

Finding the Fourth Proportional to 18,720,204.38, 28,080,306.56 and 4,536,780.38

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Solution

The fourth proportional to 18,720,204.38, 28,080,306.56 and 4,536,780.38 is: 6,805,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,204.38 : 28,080,306.56 = 4,536,780.38 : x
  2. Step 2: Convert to fraction form
    18,720,204.38/28,080,306.56 = 4,536,780.38/x
  3. Step 3: Cross multiply
    18,720,204.38x = 28,080,306.56 × 4,536,780.38
  4. Step 4: Simplify right side
    18,720,204.38x = 127,394,183,736,733.72
  5. Step 5: Solve for x
    x = 127,394,183,736,733.72/18,720,204.38
  6. Step 6: Final answer
    x = 6,805,170.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.