Home / 80,135,998.95-120,164,194.98-25,541,480.55

Finding the Fourth Proportional to 80,135,998.95, 120,164,194.98 and 25,541,480.55

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Solution

The fourth proportional to 80,135,998.95, 120,164,194.98 and 25,541,480.55 is: 38,299,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,135,998.95 : 120,164,194.98 = 25,541,480.55 : x
  2. Step 2: Convert to fraction form
    80,135,998.95/120,164,194.98 = 25,541,480.55/x
  3. Step 3: Cross multiply
    80,135,998.95x = 120,164,194.98 × 25,541,480.55
  4. Step 4: Simplify right side
    80,135,998.95x = 3,069,171,448,888,078
  5. Step 5: Solve for x
    x = 3,069,171,448,888,078/80,135,998.95
  6. Step 6: Final answer
    x = 38,299,534.41

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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.