Home / 12,481,648.20-18,722,472.30-10,316,809.80

Finding the Fourth Proportional to 12,481,648.20, 18,722,472.30 and 10,316,809.80

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Solution

The fourth proportional to 12,481,648.20, 18,722,472.30 and 10,316,809.80 is: 15,475,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,648.20 : 18,722,472.30 = 10,316,809.80 : x
  2. Step 2: Convert to fraction form
    12,481,648.20/18,722,472.30 = 10,316,809.80/x
  3. Step 3: Cross multiply
    12,481,648.20x = 18,722,472.30 × 10,316,809.80
  4. Step 4: Simplify right side
    12,481,648.20x = 193,156,185,704,868.56
  5. Step 5: Solve for x
    x = 193,156,185,704,868.56/12,481,648.20
  6. Step 6: Final answer
    x = 15,475,214.70

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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.