Home / 121,332,121.23-167,469,469.74-74,895,692.39

Finding the Fourth Proportional to 121,332,121.23, 167,469,469.74 and 74,895,692.39

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Solution

The fourth proportional to 121,332,121.23, 167,469,469.74 and 74,895,692.39 is: 103,375,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,332,121.23 : 167,469,469.74 = 74,895,692.39 : x
  2. Step 2: Convert to fraction form
    121,332,121.23/167,469,469.74 = 74,895,692.39/x
  3. Step 3: Cross multiply
    121,332,121.23x = 167,469,469.74 × 74,895,692.39
  4. Step 4: Simplify right side
    121,332,121.23x = 12,542,741,889,526,108
  5. Step 5: Solve for x
    x = 12,542,741,889,526,108/121,332,121.23
  6. Step 6: Final answer
    x = 103,375,279.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.