Home / 20,383,840.80-30,575,761.20-8,253,280.80

Finding the Fourth Proportional to 20,383,840.80, 30,575,761.20 and 8,253,280.80

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Solution

The fourth proportional to 20,383,840.80, 30,575,761.20 and 8,253,280.80 is: 12,379,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,840.80 : 30,575,761.20 = 8,253,280.80 : x
  2. Step 2: Convert to fraction form
    20,383,840.80/30,575,761.20 = 8,253,280.80/x
  3. Step 3: Cross multiply
    20,383,840.80x = 30,575,761.20 × 8,253,280.80
  4. Step 4: Simplify right side
    20,383,840.80x = 252,350,342,857,344.94
  5. Step 5: Solve for x
    x = 252,350,342,857,344.94/20,383,840.80
  6. Step 6: Final answer
    x = 12,379,921.20

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1.5x scale

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.