Home / 139,231,207.25-192,127,817.80-80,497,657.38

Finding the Fourth Proportional to 139,231,207.25, 192,127,817.80 and 80,497,657.38

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Solution

The fourth proportional to 139,231,207.25, 192,127,817.80 and 80,497,657.38 is: 111,080,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231,207.25 : 192,127,817.80 = 80,497,657.38 : x
  2. Step 2: Convert to fraction form
    139,231,207.25/192,127,817.80 = 80,497,657.38/x
  3. Step 3: Cross multiply
    139,231,207.25x = 192,127,817.80 × 80,497,657.38
  4. Step 4: Simplify right side
    139,231,207.25x = 15,465,839,250,028,976
  5. Step 5: Solve for x
    x = 15,465,839,250,028,976/139,231,207.25
  6. Step 6: Final answer
    x = 111,080,263.94

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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.