Home / 299,712,086.40-449,568,129.60-192,216,662.40

Finding the Fourth Proportional to 299,712,086.40, 449,568,129.60 and 192,216,662.40

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Solution

The fourth proportional to 299,712,086.40, 449,568,129.60 and 192,216,662.40 is: 288,324,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,712,086.40 : 449,568,129.60 = 192,216,662.40 : x
  2. Step 2: Convert to fraction form
    299,712,086.40/449,568,129.60 = 192,216,662.40/x
  3. Step 3: Cross multiply
    299,712,086.40x = 449,568,129.60 × 192,216,662.40
  4. Step 4: Simplify right side
    299,712,086.40x = 86,414,485,393,122,656
  5. Step 5: Solve for x
    x = 86,414,485,393,122,656/299,712,086.40
  6. Step 6: Final answer
    x = 288,324,993.60

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1.5x scale

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.