Home / 449,279,829.36-673,992,161.28-138,387,301.20

Finding the Fourth Proportional to 449,279,829.36, 673,992,161.28 and 138,387,301.20

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Solution

The fourth proportional to 449,279,829.36, 673,992,161.28 and 138,387,301.20 is: 207,603,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,279,829.36 : 673,992,161.28 = 138,387,301.20 : x
  2. Step 2: Convert to fraction form
    449,279,829.36/673,992,161.28 = 138,387,301.20/x
  3. Step 3: Cross multiply
    449,279,829.36x = 673,992,161.28 × 138,387,301.20
  4. Step 4: Simplify right side
    449,279,829.36x = 93,271,956,229,494,320
  5. Step 5: Solve for x
    x = 93,271,956,229,494,320/449,279,829.36
  6. Step 6: Final answer
    x = 207,603,257.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.