Home / 10,361,406.20-15,514,115.70-8,121,918.20

Finding the Fourth Proportional to 10,361,406.20, 15,514,115.70 and 8,121,918.20

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Solution

The fourth proportional to 10,361,406.20, 15,514,115.70 and 8,121,918.20 is: 12,160,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361,406.20 : 15,514,115.70 = 8,121,918.20 : x
  2. Step 2: Convert to fraction form
    10,361,406.20/15,514,115.70 = 8,121,918.20/x
  3. Step 3: Cross multiply
    10,361,406.20x = 15,514,115.70 × 8,121,918.20
  4. Step 4: Simplify right side
    10,361,406.20x = 126,004,378,660,735.73
  5. Step 5: Solve for x
    x = 126,004,378,660,735.73/10,361,406.20
  6. Step 6: Final answer
    x = 12,160,934.17

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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.