Home / 144,190,293.97-198,981,753.92-78,112,051.51

Finding the Fourth Proportional to 144,190,293.97, 198,981,753.92 and 78,112,051.51

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Solution

The fourth proportional to 144,190,293.97, 198,981,753.92 and 78,112,051.51 is: 107,794,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,190,293.97 : 198,981,753.92 = 78,112,051.51 : x
  2. Step 2: Convert to fraction form
    144,190,293.97/198,981,753.92 = 78,112,051.51/x
  3. Step 3: Cross multiply
    144,190,293.97x = 198,981,753.92 × 78,112,051.51
  4. Step 4: Simplify right side
    144,190,293.97x = 15,542,873,011,358,624
  5. Step 5: Solve for x
    x = 15,542,873,011,358,624/144,190,293.97
  6. Step 6: Final answer
    x = 107,794,169.66

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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.