Home / 12,490,414.20-18,718,125.30-9,935,998.20

Finding the Fourth Proportional to 12,490,414.20, 18,718,125.30 and 9,935,998.20

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Solution

The fourth proportional to 12,490,414.20, 18,718,125.30 and 9,935,998.20 is: 14,890,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490,414.20 : 18,718,125.30 = 9,935,998.20 : x
  2. Step 2: Convert to fraction form
    12,490,414.20/18,718,125.30 = 9,935,998.20/x
  3. Step 3: Cross multiply
    12,490,414.20x = 18,718,125.30 × 9,935,998.20
  4. Step 4: Simplify right side
    12,490,414.20x = 185,983,259,288,174.47
  5. Step 5: Solve for x
    x = 185,983,259,288,174.47/12,490,414.20
  6. Step 6: Final answer
    x = 14,890,079.41

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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.