Home / 139,195,669.38-192,064,695.66-80,436,796.80

Finding the Fourth Proportional to 139,195,669.38, 192,064,695.66 and 80,436,796.80

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Solution

The fourth proportional to 139,195,669.38, 192,064,695.66 and 80,436,796.80 is: 110,988,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,195,669.38 : 192,064,695.66 = 80,436,796.80 : x
  2. Step 2: Convert to fraction form
    139,195,669.38/192,064,695.66 = 80,436,796.80/x
  3. Step 3: Cross multiply
    139,195,669.38x = 192,064,695.66 × 80,436,796.80
  4. Step 4: Simplify right side
    139,195,669.38x = 15,449,068,897,257,262
  5. Step 5: Solve for x
    x = 15,449,068,897,257,262/139,195,669.38
  6. Step 6: Final answer
    x = 110,988,143.28

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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.