Home / 20,969,532.71-31,456,115.46-6,399,730.03

Finding the Fourth Proportional to 20,969,532.71, 31,456,115.46 and 6,399,730.03

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Solution

The fourth proportional to 20,969,532.71, 31,456,115.46 and 6,399,730.03 is: 9,600,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,532.71 : 31,456,115.46 = 6,399,730.03 : x
  2. Step 2: Convert to fraction form
    20,969,532.71/31,456,115.46 = 6,399,730.03/x
  3. Step 3: Cross multiply
    20,969,532.71x = 31,456,115.46 × 6,399,730.03
  4. Step 4: Simplify right side
    20,969,532.71x = 201,310,646,657,868.97
  5. Step 5: Solve for x
    x = 201,310,646,657,868.97/20,969,532.71
  6. Step 6: Final answer
    x = 9,600,149.39

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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.