Home / 12,131,481.20-18,197,221.80-5,754,189.20

Finding the Fourth Proportional to 12,131,481.20, 18,197,221.80 and 5,754,189.20

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Solution

The fourth proportional to 12,131,481.20, 18,197,221.80 and 5,754,189.20 is: 8,631,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,481.20 : 18,197,221.80 = 5,754,189.20 : x
  2. Step 2: Convert to fraction form
    12,131,481.20/18,197,221.80 = 5,754,189.20/x
  3. Step 3: Cross multiply
    12,131,481.20x = 18,197,221.80 × 5,754,189.20
  4. Step 4: Simplify right side
    12,131,481.20x = 104,710,257,151,564.56
  5. Step 5: Solve for x
    x = 104,710,257,151,564.56/12,131,481.20
  6. Step 6: Final answer
    x = 8,631,283.80

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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.