Home / 138,514,680.65-191,150,157.85-75,791,190.48

Finding the Fourth Proportional to 138,514,680.65, 191,150,157.85 and 75,791,190.48

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Solution

The fourth proportional to 138,514,680.65, 191,150,157.85 and 75,791,190.48 is: 104,591,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,514,680.65 : 191,150,157.85 = 75,791,190.48 : x
  2. Step 2: Convert to fraction form
    138,514,680.65/191,150,157.85 = 75,791,190.48/x
  3. Step 3: Cross multiply
    138,514,680.65x = 191,150,157.85 × 75,791,190.48
  4. Step 4: Simplify right side
    138,514,680.65x = 14,487,498,023,891,418
  5. Step 5: Solve for x
    x = 14,487,498,023,891,418/138,514,680.65
  6. Step 6: Final answer
    x = 104,591,787.35

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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.