Home / 131,399,119-181,331,959.82-72,665,763.04

Finding the Fourth Proportional to 131,399,119, 181,331,959.82 and 72,665,763.04

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Solution

The fourth proportional to 131,399,119, 181,331,959.82 and 72,665,763.04 is: 100,279,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,399,119 : 181,331,959.82 = 72,665,763.04 : x
  2. Step 2: Convert to fraction form
    131,399,119/181,331,959.82 = 72,665,763.04/x
  3. Step 3: Cross multiply
    131,399,119x = 181,331,959.82 × 72,665,763.04
  4. Step 4: Simplify right side
    131,399,119x = 13,176,625,223,858,922
  5. Step 5: Solve for x
    x = 13,176,625,223,858,922/131,399,119
  6. Step 6: Final answer
    x = 100,279,403.12

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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.