Home / 12,949,818.20-19,424,727.30-12,396,944.60

Finding the Fourth Proportional to 12,949,818.20, 19,424,727.30 and 12,396,944.60

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Solution

The fourth proportional to 12,949,818.20, 19,424,727.30 and 12,396,944.60 is: 18,595,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,818.20 : 19,424,727.30 = 12,396,944.60 : x
  2. Step 2: Convert to fraction form
    12,949,818.20/19,424,727.30 = 12,396,944.60/x
  3. Step 3: Cross multiply
    12,949,818.20x = 19,424,727.30 × 12,396,944.60
  4. Step 4: Simplify right side
    12,949,818.20x = 240,807,268,208,207.59
  5. Step 5: Solve for x
    x = 240,807,268,208,207.59/12,949,818.20
  6. Step 6: Final answer
    x = 18,595,416.90

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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.