Home / 208,874,128.85-313,321,600.20-79,491,766.53

Finding the Fourth Proportional to 208,874,128.85, 313,321,600.20 and 79,491,766.53

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Solution

The fourth proportional to 208,874,128.85, 313,321,600.20 and 79,491,766.53 is: 119,241,610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,874,128.85 : 313,321,600.20 = 79,491,766.53 : x
  2. Step 2: Convert to fraction form
    208,874,128.85/313,321,600.20 = 79,491,766.53/x
  3. Step 3: Cross multiply
    208,874,128.85x = 313,321,600.20 × 79,491,766.53
  4. Step 4: Simplify right side
    208,874,128.85x = 24,906,487,491,904,400
  5. Step 5: Solve for x
    x = 24,906,487,491,904,400/208,874,128.85
  6. Step 6: Final answer
    x = 119,241,610.39

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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.