Home / 15,383,672.82-21,236,005.20-9,585,319.38

Finding the Fourth Proportional to 15,383,672.82, 21,236,005.20 and 9,585,319.38

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Solution

The fourth proportional to 15,383,672.82, 21,236,005.20 and 9,585,319.38 is: 13,231,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383,672.82 : 21,236,005.20 = 9,585,319.38 : x
  2. Step 2: Convert to fraction form
    15,383,672.82/21,236,005.20 = 9,585,319.38/x
  3. Step 3: Cross multiply
    15,383,672.82x = 21,236,005.20 × 9,585,319.38
  4. Step 4: Simplify right side
    15,383,672.82x = 203,553,892,197,340.78
  5. Step 5: Solve for x
    x = 203,553,892,197,340.78/15,383,672.82
  6. Step 6: Final answer
    x = 13,231,813.66

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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.