Home / 12,229,408.20-18,344,112.30-9,403,782.60

Finding the Fourth Proportional to 12,229,408.20, 18,344,112.30 and 9,403,782.60

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Solution

The fourth proportional to 12,229,408.20, 18,344,112.30 and 9,403,782.60 is: 14,105,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229,408.20 : 18,344,112.30 = 9,403,782.60 : x
  2. Step 2: Convert to fraction form
    12,229,408.20/18,344,112.30 = 9,403,782.60/x
  3. Step 3: Cross multiply
    12,229,408.20x = 18,344,112.30 × 9,403,782.60
  4. Step 4: Simplify right side
    12,229,408.20x = 172,504,044,059,185.97
  5. Step 5: Solve for x
    x = 172,504,044,059,185.97/12,229,408.20
  6. Step 6: Final answer
    x = 14,105,673.90

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1.5x scale

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.