Home / 15,786,867.85-21,785,877.78-8,543,523.85

Finding the Fourth Proportional to 15,786,867.85, 21,785,877.78 and 8,543,523.85

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Solution

The fourth proportional to 15,786,867.85, 21,785,877.78 and 8,543,523.85 is: 11,790,062.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,867.85 : 21,785,877.78 = 8,543,523.85 : x
  2. Step 2: Convert to fraction form
    15,786,867.85/21,785,877.78 = 8,543,523.85/x
  3. Step 3: Cross multiply
    15,786,867.85x = 21,785,877.78 × 8,543,523.85
  4. Step 4: Simplify right side
    15,786,867.85x = 186,128,166,352,150.38
  5. Step 5: Solve for x
    x = 186,128,166,352,150.38/15,786,867.85
  6. Step 6: Final answer
    x = 11,790,062.99

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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.