Home / 139,599,187.52-192,597,013.32-80,829,773.60

Finding the Fourth Proportional to 139,599,187.52, 192,597,013.32 and 80,829,773.60

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Solution

The fourth proportional to 139,599,187.52, 192,597,013.32 and 80,829,773.60 is: 111,516,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599,187.52 : 192,597,013.32 = 80,829,773.60 : x
  2. Step 2: Convert to fraction form
    139,599,187.52/192,597,013.32 = 80,829,773.60/x
  3. Step 3: Cross multiply
    139,599,187.52x = 192,597,013.32 × 80,829,773.60
  4. Step 4: Simplify right side
    139,599,187.52x = 15,567,572,982,691,782
  5. Step 5: Solve for x
    x = 15,567,572,982,691,782/139,599,187.52
  6. Step 6: Final answer
    x = 111,516,214.81

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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.