Home / 18,172,708.20-27,259,062.30-12,126,090.60

Finding the Fourth Proportional to 18,172,708.20, 27,259,062.30 and 12,126,090.60

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Solution

The fourth proportional to 18,172,708.20, 27,259,062.30 and 12,126,090.60 is: 18,189,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,708.20 : 27,259,062.30 = 12,126,090.60 : x
  2. Step 2: Convert to fraction form
    18,172,708.20/27,259,062.30 = 12,126,090.60/x
  3. Step 3: Cross multiply
    18,172,708.20x = 27,259,062.30 × 12,126,090.60
  4. Step 4: Simplify right side
    18,172,708.20x = 330,545,859,120,844.38
  5. Step 5: Solve for x
    x = 330,545,859,120,844.38/18,172,708.20
  6. Step 6: Final answer
    x = 18,189,135.90

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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.