Home / 12,433,939-18,650,052.42-7,642,367.80

Finding the Fourth Proportional to 12,433,939, 18,650,052.42 and 7,642,367.80

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Solution

The fourth proportional to 12,433,939, 18,650,052.42 and 7,642,367.80 is: 11,463,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433,939 : 18,650,052.42 = 7,642,367.80 : x
  2. Step 2: Convert to fraction form
    12,433,939/18,650,052.42 = 7,642,367.80/x
  3. Step 3: Cross multiply
    12,433,939x = 18,650,052.42 × 7,642,367.80
  4. Step 4: Simplify right side
    12,433,939x = 142,530,560,082,920.09
  5. Step 5: Solve for x
    x = 142,530,560,082,920.09/12,433,939
  6. Step 6: Final answer
    x = 11,463,025.52

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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.