Home / 13,188,719.30-18,209,314.96-8,234,704.42

Finding the Fourth Proportional to 13,188,719.30, 18,209,314.96 and 8,234,704.42

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Solution

The fourth proportional to 13,188,719.30, 18,209,314.96 and 8,234,704.42 is: 11,369,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,719.30 : 18,209,314.96 = 8,234,704.42 : x
  2. Step 2: Convert to fraction form
    13,188,719.30/18,209,314.96 = 8,234,704.42/x
  3. Step 3: Cross multiply
    13,188,719.30x = 18,209,314.96 × 8,234,704.42
  4. Step 4: Simplify right side
    13,188,719.30x = 149,948,326,320,174.09
  5. Step 5: Solve for x
    x = 149,948,326,320,174.09/13,188,719.30
  6. Step 6: Final answer
    x = 11,369,438.00

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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.