Home / 20,979,668.61-31,473,775.17-8,849,177.88

Finding the Fourth Proportional to 20,979,668.61, 31,473,775.17 and 8,849,177.88

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Solution

The fourth proportional to 20,979,668.61, 31,473,775.17 and 8,849,177.88 is: 13,275,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,979,668.61 : 31,473,775.17 = 8,849,177.88 : x
  2. Step 2: Convert to fraction form
    20,979,668.61/31,473,775.17 = 8,849,177.88/x
  3. Step 3: Cross multiply
    20,979,668.61x = 31,473,775.17 × 8,849,177.88
  4. Step 4: Simplify right side
    20,979,668.61x = 278,517,035,034,457.28
  5. Step 5: Solve for x
    x = 278,517,035,034,457.28/20,979,668.61
  6. Step 6: Final answer
    x = 13,275,568.85

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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.