Home / 138,854,638.16-191,612,077.10-79,304,226.90

Finding the Fourth Proportional to 138,854,638.16, 191,612,077.10 and 79,304,226.90

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Solution

The fourth proportional to 138,854,638.16, 191,612,077.10 and 79,304,226.90 is: 109,435,650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,854,638.16 : 191,612,077.10 = 79,304,226.90 : x
  2. Step 2: Convert to fraction form
    138,854,638.16/191,612,077.10 = 79,304,226.90/x
  3. Step 3: Cross multiply
    138,854,638.16x = 191,612,077.10 × 79,304,226.90
  4. Step 4: Simplify right side
    138,854,638.16x = 15,195,647,639,118,694
  5. Step 5: Solve for x
    x = 15,195,647,639,118,694/138,854,638.16
  6. Step 6: Final answer
    x = 109,435,650.41

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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.