Home / 138,694,517.36-191,397,956.19-79,956,902.42

Finding the Fourth Proportional to 138,694,517.36, 191,397,956.19 and 79,956,902.42

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Solution

The fourth proportional to 138,694,517.36, 191,397,956.19 and 79,956,902.42 is: 110,340,249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,694,517.36 : 191,397,956.19 = 79,956,902.42 : x
  2. Step 2: Convert to fraction form
    138,694,517.36/191,397,956.19 = 79,956,902.42/x
  3. Step 3: Cross multiply
    138,694,517.36x = 191,397,956.19 × 79,956,902.42
  4. Step 4: Simplify right side
    138,694,517.36x = 15,303,587,705,514,276
  5. Step 5: Solve for x
    x = 15,303,587,705,514,276/138,694,517.36
  6. Step 6: Final answer
    x = 110,340,249.91

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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.