Home / 18,695,780.70-28,059,417.45-7,344,375.90

Finding the Fourth Proportional to 18,695,780.70, 28,059,417.45 and 7,344,375.90

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Solution

The fourth proportional to 18,695,780.70, 28,059,417.45 and 7,344,375.90 is: 11,022,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695,780.70 : 28,059,417.45 = 7,344,375.90 : x
  2. Step 2: Convert to fraction form
    18,695,780.70/28,059,417.45 = 7,344,375.90/x
  3. Step 3: Cross multiply
    18,695,780.70x = 28,059,417.45 × 7,344,375.90
  4. Step 4: Simplify right side
    18,695,780.70x = 206,078,909,287,819.47
  5. Step 5: Solve for x
    x = 206,078,909,287,819.47/18,695,780.70
  6. Step 6: Final answer
    x = 11,022,749.60

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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.