Home / 139,617,078.60-192,665,350.65-80,035,660.92

Finding the Fourth Proportional to 139,617,078.60, 192,665,350.65 and 80,035,660.92

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Solution

The fourth proportional to 139,617,078.60, 192,665,350.65 and 80,035,660.92 is: 110,445,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,617,078.60 : 192,665,350.65 = 80,035,660.92 : x
  2. Step 2: Convert to fraction form
    139,617,078.60/192,665,350.65 = 80,035,660.92/x
  3. Step 3: Cross multiply
    139,617,078.60x = 192,665,350.65 × 80,035,660.92
  4. Step 4: Simplify right side
    139,617,078.60x = 15,420,098,675,656,302
  5. Step 5: Solve for x
    x = 15,420,098,675,656,302/139,617,078.60
  6. Step 6: Final answer
    x = 110,445,647.70

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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.