Home / 12,444,120.78-18,672,873.42-11,991,173.90

Finding the Fourth Proportional to 12,444,120.78, 18,672,873.42 and 11,991,173.90

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Solution

The fourth proportional to 12,444,120.78, 18,672,873.42 and 11,991,173.90 is: 17,993,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444,120.78 : 18,672,873.42 = 11,991,173.90 : x
  2. Step 2: Convert to fraction form
    12,444,120.78/18,672,873.42 = 11,991,173.90/x
  3. Step 3: Cross multiply
    12,444,120.78x = 18,672,873.42 × 11,991,173.90
  4. Step 4: Simplify right side
    12,444,120.78x = 223,909,672,391,907.78
  5. Step 5: Solve for x
    x = 223,909,672,391,907.78/12,444,120.78
  6. Step 6: Final answer
    x = 17,993,209.51

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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.