Home / 81,856,576.20-122,801,922.90-27,286,114.80

Finding the Fourth Proportional to 81,856,576.20, 122,801,922.90 and 27,286,114.80

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Solution

The fourth proportional to 81,856,576.20, 122,801,922.90 and 27,286,114.80 is: 40,934,858.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,856,576.20 : 122,801,922.90 = 27,286,114.80 : x
  2. Step 2: Convert to fraction form
    81,856,576.20/122,801,922.90 = 27,286,114.80/x
  3. Step 3: Cross multiply
    81,856,576.20x = 122,801,922.90 × 27,286,114.80
  4. Step 4: Simplify right side
    81,856,576.20x = 3,350,787,365,910,149
  5. Step 5: Solve for x
    x = 3,350,787,365,910,149/81,856,576.20
  6. Step 6: Final answer
    x = 40,934,858.52

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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.