Home / 12,444,148.80-18,672,915.48-11,991,201.96

Finding the Fourth Proportional to 12,444,148.80, 18,672,915.48 and 11,991,201.96

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Solution

The fourth proportional to 12,444,148.80, 18,672,915.48 and 11,991,201.96 is: 17,993,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444,148.80 : 18,672,915.48 = 11,991,201.96 : x
  2. Step 2: Convert to fraction form
    12,444,148.80/18,672,915.48 = 11,991,201.96/x
  3. Step 3: Cross multiply
    12,444,148.80x = 18,672,915.48 × 11,991,201.96
  4. Step 4: Simplify right side
    12,444,148.80x = 223,910,700,702,690.38
  5. Step 5: Solve for x
    x = 223,910,700,702,690.38/12,444,148.80
  6. Step 6: Final answer
    x = 17,993,251.63

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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.