Home / 138,694,481.35-191,397,906.62-79,956,866.41

Finding the Fourth Proportional to 138,694,481.35, 191,397,906.62 and 79,956,866.41

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Solution

The fourth proportional to 138,694,481.35, 191,397,906.62 and 79,956,866.41 is: 110,340,200.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,694,481.35 : 191,397,906.62 = 79,956,866.41 : x
  2. Step 2: Convert to fraction form
    138,694,481.35/191,397,906.62 = 79,956,866.41/x
  3. Step 3: Cross multiply
    138,694,481.35x = 191,397,906.62 × 79,956,866.41
  4. Step 4: Simplify right side
    138,694,481.35x = 15,303,576,850,190,554
  5. Step 5: Solve for x
    x = 15,303,576,850,190,554/138,694,481.35
  6. Step 6: Final answer
    x = 110,340,200.28

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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.