Home / 20,876,632.80-31,322,822.40-10,103,470.80

Finding the Fourth Proportional to 20,876,632.80, 31,322,822.40 and 10,103,470.80

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Solution

The fourth proportional to 20,876,632.80, 31,322,822.40 and 10,103,470.80 is: 15,159,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,632.80 : 31,322,822.40 = 10,103,470.80 : x
  2. Step 2: Convert to fraction form
    20,876,632.80/31,322,822.40 = 10,103,470.80/x
  3. Step 3: Cross multiply
    20,876,632.80x = 31,322,822.40 × 10,103,470.80
  4. Step 4: Simplify right side
    20,876,632.80x = 316,469,221,491,985.94
  5. Step 5: Solve for x
    x = 316,469,221,491,985.94/20,876,632.80
  6. Step 6: Final answer
    x = 15,159,016.52

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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.