Home / 20,979,670.11-31,473,777.42-8,849,179.38

Finding the Fourth Proportional to 20,979,670.11, 31,473,777.42 and 8,849,179.38

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Solution

The fourth proportional to 20,979,670.11, 31,473,777.42 and 8,849,179.38 is: 13,275,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,979,670.11 : 31,473,777.42 = 8,849,179.38 : x
  2. Step 2: Convert to fraction form
    20,979,670.11/31,473,777.42 = 8,849,179.38/x
  3. Step 3: Cross multiply
    20,979,670.11x = 31,473,777.42 × 8,849,179.38
  4. Step 4: Simplify right side
    20,979,670.11x = 278,517,102,155,773.66
  5. Step 5: Solve for x
    x = 278,517,102,155,773.66/20,979,670.11
  6. Step 6: Final answer
    x = 13,275,571.10

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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.