Home / 217,260,286.88-299,810,072.89-123,180,764.48

Finding the Fourth Proportional to 217,260,286.88, 299,810,072.89 and 123,180,764.48

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Solution

The fourth proportional to 217,260,286.88, 299,810,072.89 and 123,180,764.48 is: 169,984,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,260,286.88 : 299,810,072.89 = 123,180,764.48 : x
  2. Step 2: Convert to fraction form
    217,260,286.88/299,810,072.89 = 123,180,764.48/x
  3. Step 3: Cross multiply
    217,260,286.88x = 299,810,072.89 × 123,180,764.48
  4. Step 4: Simplify right side
    217,260,286.88x = 36,930,833,977,394,720
  5. Step 5: Solve for x
    x = 36,930,833,977,394,720/217,260,286.88
  6. Step 6: Final answer
    x = 169,984,282.48

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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.