Home / 12,278,491.90-18,382,308.45-10,861,315.90

Finding the Fourth Proportional to 12,278,491.90, 18,382,308.45 and 10,861,315.90

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Solution

The fourth proportional to 12,278,491.90, 18,382,308.45 and 10,861,315.90 is: 16,260,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,491.90 : 18,382,308.45 = 10,861,315.90 : x
  2. Step 2: Convert to fraction form
    12,278,491.90/18,382,308.45 = 10,861,315.90/x
  3. Step 3: Cross multiply
    12,278,491.90x = 18,382,308.45 × 10,861,315.90
  4. Step 4: Simplify right side
    12,278,491.90x = 199,656,059,046,689.34
  5. Step 5: Solve for x
    x = 199,656,059,046,689.34/12,278,491.90
  6. Step 6: Final answer
    x = 16,260,633.69

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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.