Home / 12,861,112.68-19,287,605.90-4,223,789.88

Finding the Fourth Proportional to 12,861,112.68, 19,287,605.90 and 4,223,789.88

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Solution

The fourth proportional to 12,861,112.68, 19,287,605.90 and 4,223,789.88 is: 6,334,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,112.68 : 19,287,605.90 = 4,223,789.88 : x
  2. Step 2: Convert to fraction form
    12,861,112.68/19,287,605.90 = 4,223,789.88/x
  3. Step 3: Cross multiply
    12,861,112.68x = 19,287,605.90 × 4,223,789.88
  4. Step 4: Simplify right side
    12,861,112.68x = 81,466,794,609,848.28
  5. Step 5: Solve for x
    x = 81,466,794,609,848.28/12,861,112.68
  6. Step 6: Final answer
    x = 6,334,350.43

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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.