Home / 12,100,689.48-18,150,968.46-6,979,799.88

Finding the Fourth Proportional to 12,100,689.48, 18,150,968.46 and 6,979,799.88

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Solution

The fourth proportional to 12,100,689.48, 18,150,968.46 and 6,979,799.88 is: 10,469,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,689.48 : 18,150,968.46 = 6,979,799.88 : x
  2. Step 2: Convert to fraction form
    12,100,689.48/18,150,968.46 = 6,979,799.88/x
  3. Step 3: Cross multiply
    12,100,689.48x = 18,150,968.46 × 6,979,799.88
  4. Step 4: Simplify right side
    12,100,689.48x = 126,690,127,478,991.78
  5. Step 5: Solve for x
    x = 126,690,127,478,991.78/12,100,689.48
  6. Step 6: Final answer
    x = 10,469,661.89

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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.