Home / 12,481,699.80-18,722,549.70-11,287,306.20

Finding the Fourth Proportional to 12,481,699.80, 18,722,549.70 and 11,287,306.20

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Solution

The fourth proportional to 12,481,699.80, 18,722,549.70 and 11,287,306.20 is: 16,930,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,699.80 : 18,722,549.70 = 11,287,306.20 : x
  2. Step 2: Convert to fraction form
    12,481,699.80/18,722,549.70 = 11,287,306.20/x
  3. Step 3: Cross multiply
    12,481,699.80x = 18,722,549.70 × 11,287,306.20
  4. Step 4: Simplify right side
    12,481,699.80x = 211,327,151,308,618.12
  5. Step 5: Solve for x
    x = 211,327,151,308,618.12/12,481,699.80
  6. Step 6: Final answer
    x = 16,930,959.30

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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.