Home / 51,519,909.12-77,279,469.96-13,181,361.72

Finding the Fourth Proportional to 51,519,909.12, 77,279,469.96 and 13,181,361.72

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Solution

The fourth proportional to 51,519,909.12, 77,279,469.96 and 13,181,361.72 is: 19,771,941.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,519,909.12 : 77,279,469.96 = 13,181,361.72 : x
  2. Step 2: Convert to fraction form
    51,519,909.12/77,279,469.96 = 13,181,361.72/x
  3. Step 3: Cross multiply
    51,519,909.12x = 77,279,469.96 × 13,181,361.72
  4. Step 4: Simplify right side
    51,519,909.12x = 1,018,648,647,072,633.88
  5. Step 5: Solve for x
    x = 1,018,648,647,072,633.88/51,519,909.12
  6. Step 6: Final answer
    x = 19,771,941.85

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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.