Home / 20,049,819.21-30,081,205.76-9,274,188.65

Finding the Fourth Proportional to 20,049,819.21, 30,081,205.76 and 9,274,188.65

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Solution

The fourth proportional to 20,049,819.21, 30,081,205.76 and 9,274,188.65 is: 13,914,278.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049,819.21 : 30,081,205.76 = 9,274,188.65 : x
  2. Step 2: Convert to fraction form
    20,049,819.21/30,081,205.76 = 9,274,188.65/x
  3. Step 3: Cross multiply
    20,049,819.21x = 30,081,205.76 × 9,274,188.65
  4. Step 4: Simplify right side
    20,049,819.21x = 278,978,776,840,929.62
  5. Step 5: Solve for x
    x = 278,978,776,840,929.62/20,049,819.21
  6. Step 6: Final answer
    x = 13,914,278.92

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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.