Home / 12,939,773.80-19,425,635.10-8,147,453.80

Finding the Fourth Proportional to 12,939,773.80, 19,425,635.10 and 8,147,453.80

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Solution

The fourth proportional to 12,939,773.80, 19,425,635.10 and 8,147,453.80 is: 12,231,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,773.80 : 19,425,635.10 = 8,147,453.80 : x
  2. Step 2: Convert to fraction form
    12,939,773.80/19,425,635.10 = 8,147,453.80/x
  3. Step 3: Cross multiply
    12,939,773.80x = 19,425,635.10 × 8,147,453.80
  4. Step 4: Simplify right side
    12,939,773.80x = 158,269,464,512,908.38
  5. Step 5: Solve for x
    x = 158,269,464,512,908.38/12,939,773.80
  6. Step 6: Final answer
    x = 12,231,238.89

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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.