Home / 14,987,253.78-20,682,788.18-9,189,232.47

Finding the Fourth Proportional to 14,987,253.78, 20,682,788.18 and 9,189,232.47

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Solution

The fourth proportional to 14,987,253.78, 20,682,788.18 and 9,189,232.47 is: 12,681,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987,253.78 : 20,682,788.18 = 9,189,232.47 : x
  2. Step 2: Convert to fraction form
    14,987,253.78/20,682,788.18 = 9,189,232.47/x
  3. Step 3: Cross multiply
    14,987,253.78x = 20,682,788.18 × 9,189,232.47
  4. Step 4: Simplify right side
    14,987,253.78x = 190,058,948,667,842.06
  5. Step 5: Solve for x
    x = 190,058,948,667,842.06/14,987,253.78
  6. Step 6: Final answer
    x = 12,681,372.55

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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.