Home / 12,563,218.20-18,844,827.30-11,287,759.80

Finding the Fourth Proportional to 12,563,218.20, 18,844,827.30 and 11,287,759.80

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Solution

The fourth proportional to 12,563,218.20, 18,844,827.30 and 11,287,759.80 is: 16,931,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563,218.20 : 18,844,827.30 = 11,287,759.80 : x
  2. Step 2: Convert to fraction form
    12,563,218.20/18,844,827.30 = 11,287,759.80/x
  3. Step 3: Cross multiply
    12,563,218.20x = 18,844,827.30 × 11,287,759.80
  4. Step 4: Simplify right side
    12,563,218.20x = 212,715,884,034,882.56
  5. Step 5: Solve for x
    x = 212,715,884,034,882.56/12,563,218.20
  6. Step 6: Final answer
    x = 16,931,639.70

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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.