Home / 18,821,865.69-25,959,531.39-13,614,408.20

Finding the Fourth Proportional to 18,821,865.69, 25,959,531.39 and 13,614,408.20

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Solution

The fourth proportional to 18,821,865.69, 25,959,531.39 and 13,614,408.20 is: 18,777,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,865.69 : 25,959,531.39 = 13,614,408.20 : x
  2. Step 2: Convert to fraction form
    18,821,865.69/25,959,531.39 = 13,614,408.20/x
  3. Step 3: Cross multiply
    18,821,865.69x = 25,959,531.39 × 13,614,408.20
  4. Step 4: Simplify right side
    18,821,865.69x = 353,423,656,894,375.75
  5. Step 5: Solve for x
    x = 353,423,656,894,375.75/18,821,865.69
  6. Step 6: Final answer
    x = 18,777,291.41

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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.