Home / 138,854,624.22-191,612,057.86-79,304,213.03

Finding the Fourth Proportional to 138,854,624.22, 191,612,057.86 and 79,304,213.03

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Solution

The fourth proportional to 138,854,624.22, 191,612,057.86 and 79,304,213.03 is: 109,435,631.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,854,624.22 : 191,612,057.86 = 79,304,213.03 : x
  2. Step 2: Convert to fraction form
    138,854,624.22/191,612,057.86 = 79,304,213.03/x
  3. Step 3: Cross multiply
    138,854,624.22x = 191,612,057.86 × 79,304,213.03
  4. Step 4: Simplify right side
    138,854,624.22x = 15,195,643,454,787,198
  5. Step 5: Solve for x
    x = 15,195,643,454,787,198/138,854,624.22
  6. Step 6: Final answer
    x = 109,435,631.26

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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.