Home / 15,645,441.12-21,592,040.12-8,771,251.78

Finding the Fourth Proportional to 15,645,441.12, 21,592,040.12 and 8,771,251.78

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Solution

The fourth proportional to 15,645,441.12, 21,592,040.12 and 8,771,251.78 is: 12,105,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645,441.12 : 21,592,040.12 = 8,771,251.78 : x
  2. Step 2: Convert to fraction form
    15,645,441.12/21,592,040.12 = 8,771,251.78/x
  3. Step 3: Cross multiply
    15,645,441.12x = 21,592,040.12 × 8,771,251.78
  4. Step 4: Simplify right side
    15,645,441.12x = 189,389,220,336,381.41
  5. Step 5: Solve for x
    x = 189,389,220,336,381.41/15,645,441.12
  6. Step 6: Final answer
    x = 12,105,073.86

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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.