Home / 13,138,976.05-18,000,096.49-12,647,738.59

Finding the Fourth Proportional to 13,138,976.05, 18,000,096.49 and 12,647,738.59

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Solution

The fourth proportional to 13,138,976.05, 18,000,096.49 and 12,647,738.59 is: 17,327,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,976.05 : 18,000,096.49 = 12,647,738.59 : x
  2. Step 2: Convert to fraction form
    13,138,976.05/18,000,096.49 = 12,647,738.59/x
  3. Step 3: Cross multiply
    13,138,976.05x = 18,000,096.49 × 12,647,738.59
  4. Step 4: Simplify right side
    13,138,976.05x = 227,660,515,000,296.53
  5. Step 5: Solve for x
    x = 227,660,515,000,296.53/13,138,976.05
  6. Step 6: Final answer
    x = 17,327,112.41

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.