Home / 261,139,576.20-391,373,441.10-158,794,974.60

Finding the Fourth Proportional to 261,139,576.20, 391,373,441.10 and 158,794,974.60

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Solution

The fourth proportional to 261,139,576.20, 391,373,441.10 and 158,794,974.60 is: 237,988,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,139,576.20 : 391,373,441.10 = 158,794,974.60 : x
  2. Step 2: Convert to fraction form
    261,139,576.20/391,373,441.10 = 158,794,974.60/x
  3. Step 3: Cross multiply
    261,139,576.20x = 391,373,441.10 × 158,794,974.60
  4. Step 4: Simplify right side
    261,139,576.20x = 62,148,135,638,589,096
  5. Step 5: Solve for x
    x = 62,148,135,638,589,096/261,139,576.20
  6. Step 6: Final answer
    x = 237,988,192.15

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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.