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Finding the Fourth Proportional to 298,949,594.40, 448,424,391.60 and 221,465,496.60

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Solution

The fourth proportional to 298,949,594.40, 448,424,391.60 and 221,465,496.60 is: 332,198,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,949,594.40 : 448,424,391.60 = 221,465,496.60 : x
  2. Step 2: Convert to fraction form
    298,949,594.40/448,424,391.60 = 221,465,496.60/x
  3. Step 3: Cross multiply
    298,949,594.40x = 448,424,391.60 × 221,465,496.60
  4. Step 4: Simplify right side
    298,949,594.40x = 99,310,530,573,246,864
  5. Step 5: Solve for x
    x = 99,310,530,573,246,864/298,949,594.40
  6. Step 6: Final answer
    x = 332,198,244.90

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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.