Home / 18,661,662.40-27,992,493.60-7,891,124.80

Finding the Fourth Proportional to 18,661,662.40, 27,992,493.60 and 7,891,124.80

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Solution

The fourth proportional to 18,661,662.40, 27,992,493.60 and 7,891,124.80 is: 11,836,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661,662.40 : 27,992,493.60 = 7,891,124.80 : x
  2. Step 2: Convert to fraction form
    18,661,662.40/27,992,493.60 = 7,891,124.80/x
  3. Step 3: Cross multiply
    18,661,662.40x = 27,992,493.60 × 7,891,124.80
  4. Step 4: Simplify right side
    18,661,662.40x = 220,892,260,460,801.28
  5. Step 5: Solve for x
    x = 220,892,260,460,801.28/18,661,662.40
  6. Step 6: Final answer
    x = 11,836,687.20

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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.