Home / 20,478,446.60-30,722,251.68-7,699,062.04

Finding the Fourth Proportional to 20,478,446.60, 30,722,251.68 and 7,699,062.04

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Solution

The fourth proportional to 20,478,446.60, 30,722,251.68 and 7,699,062.04 is: 11,550,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,446.60 : 30,722,251.68 = 7,699,062.04 : x
  2. Step 2: Convert to fraction form
    20,478,446.60/30,722,251.68 = 7,699,062.04/x
  3. Step 3: Cross multiply
    20,478,446.60x = 30,722,251.68 × 7,699,062.04
  4. Step 4: Simplify right side
    20,478,446.60x = 236,532,521,692,814.22
  5. Step 5: Solve for x
    x = 236,532,521,692,814.22/20,478,446.60
  6. Step 6: Final answer
    x = 11,550,315.62

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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.