Home / 12,481,803.40-18,685,380.30-11,743,601.80

Finding the Fourth Proportional to 12,481,803.40, 18,685,380.30 and 11,743,601.80

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Solution

The fourth proportional to 12,481,803.40, 18,685,380.30 and 11,743,601.80 is: 17,580,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,803.40 : 18,685,380.30 = 11,743,601.80 : x
  2. Step 2: Convert to fraction form
    12,481,803.40/18,685,380.30 = 11,743,601.80/x
  3. Step 3: Cross multiply
    12,481,803.40x = 18,685,380.30 × 11,743,601.80
  4. Step 4: Simplify right side
    12,481,803.40x = 219,433,665,724,764.56
  5. Step 5: Solve for x
    x = 219,433,665,724,764.56/12,481,803.40
  6. Step 6: Final answer
    x = 17,580,285.37

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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.