Home / 71,482,797.76-107,206,481.92-20,365,259.52

Finding the Fourth Proportional to 71,482,797.76, 107,206,481.92 and 20,365,259.52

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Solution

The fourth proportional to 71,482,797.76, 107,206,481.92 and 20,365,259.52 is: 30,542,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,482,797.76 : 107,206,481.92 = 20,365,259.52 : x
  2. Step 2: Convert to fraction form
    71,482,797.76/107,206,481.92 = 20,365,259.52/x
  3. Step 3: Cross multiply
    71,482,797.76x = 107,206,481.92 × 20,365,259.52
  4. Step 4: Simplify right side
    71,482,797.76x = 2,183,287,826,526,987.75
  5. Step 5: Solve for x
    x = 2,183,287,826,526,987.75/71,482,797.76
  6. Step 6: Final answer
    x = 30,542,842.40

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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.