Home / 12,320,888.92-17,002,939.56-6,813,979.20

Finding the Fourth Proportional to 12,320,888.92, 17,002,939.56 and 6,813,979.20

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Solution

The fourth proportional to 12,320,888.92, 17,002,939.56 and 6,813,979.20 is: 9,403,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320,888.92 : 17,002,939.56 = 6,813,979.20 : x
  2. Step 2: Convert to fraction form
    12,320,888.92/17,002,939.56 = 6,813,979.20/x
  3. Step 3: Cross multiply
    12,320,888.92x = 17,002,939.56 × 6,813,979.20
  4. Step 4: Simplify right side
    12,320,888.92x = 115,857,676,500,697.14
  5. Step 5: Solve for x
    x = 115,857,676,500,697.14/12,320,888.92
  6. Step 6: Final answer
    x = 9,403,353.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.