Home / 139,169,684.42-192,042,964.34-80,436,153.70

Finding the Fourth Proportional to 139,169,684.42, 192,042,964.34 and 80,436,153.70

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Solution

The fourth proportional to 139,169,684.42, 192,042,964.34 and 80,436,153.70 is: 110,995,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,169,684.42 : 192,042,964.34 = 80,436,153.70 : x
  2. Step 2: Convert to fraction form
    139,169,684.42/192,042,964.34 = 80,436,153.70/x
  3. Step 3: Cross multiply
    139,169,684.42x = 192,042,964.34 × 80,436,153.70
  4. Step 4: Simplify right side
    139,169,684.42x = 15,447,197,396,655,860
  5. Step 5: Solve for x
    x = 15,447,197,396,655,860/139,169,684.42
  6. Step 6: Final answer
    x = 110,995,418.73

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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.