Home / 12,139,524.30-18,209,286.45-11,147,501.10

Finding the Fourth Proportional to 12,139,524.30, 18,209,286.45 and 11,147,501.10

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Solution

The fourth proportional to 12,139,524.30, 18,209,286.45 and 11,147,501.10 is: 16,721,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,524.30 : 18,209,286.45 = 11,147,501.10 : x
  2. Step 2: Convert to fraction form
    12,139,524.30/18,209,286.45 = 11,147,501.10/x
  3. Step 3: Cross multiply
    12,139,524.30x = 18,209,286.45 × 11,147,501.10
  4. Step 4: Simplify right side
    12,139,524.30x = 202,988,040,731,590.09
  5. Step 5: Solve for x
    x = 202,988,040,731,590.09/12,139,524.30
  6. Step 6: Final answer
    x = 16,721,251.65

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Double scale
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Similar ratio
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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.