Home / 12,408,489.20-18,575,992.20-9,227,716.40

Finding the Fourth Proportional to 12,408,489.20, 18,575,992.20 and 9,227,716.40

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Solution

The fourth proportional to 12,408,489.20, 18,575,992.20 and 9,227,716.40 is: 13,814,251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,489.20 : 18,575,992.20 = 9,227,716.40 : x
  2. Step 2: Convert to fraction form
    12,408,489.20/18,575,992.20 = 9,227,716.40/x
  3. Step 3: Cross multiply
    12,408,489.20x = 18,575,992.20 × 9,227,716.40
  4. Step 4: Simplify right side
    12,408,489.20x = 171,413,987,870,212.09
  5. Step 5: Solve for x
    x = 171,413,987,870,212.09/12,408,489.20
  6. Step 6: Final answer
    x = 13,814,251.28

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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.