Home / 139,270,908.11-192,195,850.52-76,552,812.38

Finding the Fourth Proportional to 139,270,908.11, 192,195,850.52 and 76,552,812.38

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Solution

The fourth proportional to 139,270,908.11, 192,195,850.52 and 76,552,812.38 is: 105,643,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,270,908.11 : 192,195,850.52 = 76,552,812.38 : x
  2. Step 2: Convert to fraction form
    139,270,908.11/192,195,850.52 = 76,552,812.38/x
  3. Step 3: Cross multiply
    139,270,908.11x = 192,195,850.52 × 76,552,812.38
  4. Step 4: Simplify right side
    139,270,908.11x = 14,713,132,885,743,956
  5. Step 5: Solve for x
    x = 14,713,132,885,743,956/139,270,908.11
  6. Step 6: Final answer
    x = 105,643,978.96

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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.