Home / 13,291,418.80-18,342,174.27-7,179,847.30

Finding the Fourth Proportional to 13,291,418.80, 18,342,174.27 and 7,179,847.30

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Solution

The fourth proportional to 13,291,418.80, 18,342,174.27 and 7,179,847.30 is: 9,908,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,418.80 : 18,342,174.27 = 7,179,847.30 : x
  2. Step 2: Convert to fraction form
    13,291,418.80/18,342,174.27 = 7,179,847.30/x
  3. Step 3: Cross multiply
    13,291,418.80x = 18,342,174.27 × 7,179,847.30
  4. Step 4: Simplify right side
    13,291,418.80x = 131,694,010,408,588.97
  5. Step 5: Solve for x
    x = 131,694,010,408,588.97/13,291,418.80
  6. Step 6: Final answer
    x = 9,908,198.09

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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.