Home / 8,215,037.30-11,332,979.79-5,315,373.38

Finding the Fourth Proportional to 8,215,037.30, 11,332,979.79 and 5,315,373.38

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Solution

The fourth proportional to 8,215,037.30, 11,332,979.79 and 5,315,373.38 is: 7,332,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215,037.30 : 11,332,979.79 = 5,315,373.38 : x
  2. Step 2: Convert to fraction form
    8,215,037.30/11,332,979.79 = 5,315,373.38/x
  3. Step 3: Cross multiply
    8,215,037.30x = 11,332,979.79 × 5,315,373.38
  4. Step 4: Simplify right side
    8,215,037.30x = 60,239,019,091,843.98
  5. Step 5: Solve for x
    x = 60,239,019,091,843.98/8,215,037.30
  6. Step 6: Final answer
    x = 7,332,774.87

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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.