Home / 20,516,822.20-30,775,233.30-20,218,223.80

Finding the Fourth Proportional to 20,516,822.20, 30,775,233.30 and 20,218,223.80

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Solution

The fourth proportional to 20,516,822.20, 30,775,233.30 and 20,218,223.80 is: 30,327,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516,822.20 : 30,775,233.30 = 20,218,223.80 : x
  2. Step 2: Convert to fraction form
    20,516,822.20/30,775,233.30 = 20,218,223.80/x
  3. Step 3: Cross multiply
    20,516,822.20x = 30,775,233.30 × 20,218,223.80
  4. Step 4: Simplify right side
    20,516,822.20x = 622,220,554,356,612.62
  5. Step 5: Solve for x
    x = 622,220,554,356,612.62/20,516,822.20
  6. Step 6: Final answer
    x = 30,327,335.70

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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.