Home / 12,667,719.85-18,994,744.22-5,747,422.20

Finding the Fourth Proportional to 12,667,719.85, 18,994,744.22 and 5,747,422.20

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Solution

The fourth proportional to 12,667,719.85, 18,994,744.22 and 5,747,422.20 is: 8,618,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667,719.85 : 18,994,744.22 = 5,747,422.20 : x
  2. Step 2: Convert to fraction form
    12,667,719.85/18,994,744.22 = 5,747,422.20/x
  3. Step 3: Cross multiply
    12,667,719.85x = 18,994,744.22 × 5,747,422.20
  4. Step 4: Simplify right side
    12,667,719.85x = 109,170,814,613,349.69
  5. Step 5: Solve for x
    x = 109,170,814,613,349.69/12,667,719.85
  6. Step 6: Final answer
    x = 8,618,031.97

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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.