Home / 121,717,799.36-167,917,781.13-80,522,067.68

Finding the Fourth Proportional to 121,717,799.36, 167,917,781.13 and 80,522,067.68

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Solution

The fourth proportional to 121,717,799.36, 167,917,781.13 and 80,522,067.68 is: 111,085,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,717,799.36 : 167,917,781.13 = 80,522,067.68 : x
  2. Step 2: Convert to fraction form
    121,717,799.36/167,917,781.13 = 80,522,067.68/x
  3. Step 3: Cross multiply
    121,717,799.36x = 167,917,781.13 × 80,522,067.68
  4. Step 4: Simplify right side
    121,717,799.36x = 13,521,086,936,825,288
  5. Step 5: Solve for x
    x = 13,521,086,936,825,288/121,717,799.36
  6. Step 6: Final answer
    x = 111,085,535.62

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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.