Home / 8,065,103.78-11,129,837.10-4,443,431.78

Finding the Fourth Proportional to 8,065,103.78, 11,129,837.10 and 4,443,431.78

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Solution

The fourth proportional to 8,065,103.78, 11,129,837.10 and 4,443,431.78 is: 6,131,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,103.78 : 11,129,837.10 = 4,443,431.78 : x
  2. Step 2: Convert to fraction form
    8,065,103.78/11,129,837.10 = 4,443,431.78/x
  3. Step 3: Cross multiply
    8,065,103.78x = 11,129,837.10 × 4,443,431.78
  4. Step 4: Simplify right side
    8,065,103.78x = 49,454,671,876,363.04
  5. Step 5: Solve for x
    x = 49,454,671,876,363.04/8,065,103.78
  6. Step 6: Final answer
    x = 6,131,932.49

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Double scale
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1.5x scale

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.