Home / 18,107,905.20-27,161,857.80-5,979,240.60

Finding the Fourth Proportional to 18,107,905.20, 27,161,857.80 and 5,979,240.60

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Solution

The fourth proportional to 18,107,905.20, 27,161,857.80 and 5,979,240.60 is: 8,968,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107,905.20 : 27,161,857.80 = 5,979,240.60 : x
  2. Step 2: Convert to fraction form
    18,107,905.20/27,161,857.80 = 5,979,240.60/x
  3. Step 3: Cross multiply
    18,107,905.20x = 27,161,857.80 × 5,979,240.60
  4. Step 4: Simplify right side
    18,107,905.20x = 162,407,282,929,186.69
  5. Step 5: Solve for x
    x = 162,407,282,929,186.69/18,107,905.20
  6. Step 6: Final answer
    x = 8,968,860.90

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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.