Home / 8,693,287.20-13,039,930.80-5,481,021.60

Finding the Fourth Proportional to 8,693,287.20, 13,039,930.80 and 5,481,021.60

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Solution

The fourth proportional to 8,693,287.20, 13,039,930.80 and 5,481,021.60 is: 8,221,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693,287.20 : 13,039,930.80 = 5,481,021.60 : x
  2. Step 2: Convert to fraction form
    8,693,287.20/13,039,930.80 = 5,481,021.60/x
  3. Step 3: Cross multiply
    8,693,287.20x = 13,039,930.80 × 5,481,021.60
  4. Step 4: Simplify right side
    8,693,287.20x = 71,472,142,377,305.28
  5. Step 5: Solve for x
    x = 71,472,142,377,305.28/8,693,287.20
  6. Step 6: Final answer
    x = 8,221,532.40

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Similar ratio
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1.5x scale

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.