Home / 12,101,921.20-18,127,998.60-8,319,674.80

Finding the Fourth Proportional to 12,101,921.20, 18,127,998.60 and 8,319,674.80

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Solution

The fourth proportional to 12,101,921.20, 18,127,998.60 and 8,319,674.80 is: 12,462,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,921.20 : 18,127,998.60 = 8,319,674.80 : x
  2. Step 2: Convert to fraction form
    12,101,921.20/18,127,998.60 = 8,319,674.80/x
  3. Step 3: Cross multiply
    12,101,921.20x = 18,127,998.60 × 8,319,674.80
  4. Step 4: Simplify right side
    12,101,921.20x = 150,819,053,126,855.28
  5. Step 5: Solve for x
    x = 150,819,053,126,855.28/12,101,921.20
  6. Step 6: Final answer
    x = 12,462,405.81

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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.