Home / 20,982,247.68-31,454,699.76-8,199,845.76

Finding the Fourth Proportional to 20,982,247.68, 31,454,699.76 and 8,199,845.76

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Solution

The fourth proportional to 20,982,247.68, 31,454,699.76 and 8,199,845.76 is: 12,292,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982,247.68 : 31,454,699.76 = 8,199,845.76 : x
  2. Step 2: Convert to fraction form
    20,982,247.68/31,454,699.76 = 8,199,845.76/x
  3. Step 3: Cross multiply
    20,982,247.68x = 31,454,699.76 × 8,199,845.76
  4. Step 4: Simplify right side
    20,982,247.68x = 257,923,686,459,109.03
  5. Step 5: Solve for x
    x = 257,923,686,459,109.03/20,982,247.68
  6. Step 6: Final answer
    x = 12,292,471.73

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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.