Home / 12,969,481.28-19,453,911.78-4,215,748.88

Finding the Fourth Proportional to 12,969,481.28, 19,453,911.78 and 4,215,748.88

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Solution

The fourth proportional to 12,969,481.28, 19,453,911.78 and 4,215,748.88 is: 6,323,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969,481.28 : 19,453,911.78 = 4,215,748.88 : x
  2. Step 2: Convert to fraction form
    12,969,481.28/19,453,911.78 = 4,215,748.88/x
  3. Step 3: Cross multiply
    12,969,481.28x = 19,453,911.78 × 4,215,748.88
  4. Step 4: Simplify right side
    12,969,481.28x = 82,012,806,862,597.66
  5. Step 5: Solve for x
    x = 82,012,806,862,597.66/12,969,481.28
  6. Step 6: Final answer
    x = 6,323,522.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.