Home / 408,687,410.54-613,269,039.31-172,322,105.75

Finding the Fourth Proportional to 408,687,410.54, 613,269,039.31 and 172,322,105.75

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Solution

The fourth proportional to 408,687,410.54, 613,269,039.31 and 172,322,105.75 is: 258,583,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,687,410.54 : 613,269,039.31 = 172,322,105.75 : x
  2. Step 2: Convert to fraction form
    408,687,410.54/613,269,039.31 = 172,322,105.75/x
  3. Step 3: Cross multiply
    408,687,410.54x = 613,269,039.31 × 172,322,105.75
  4. Step 4: Simplify right side
    408,687,410.54x = 105,679,812,247,427,904
  5. Step 5: Solve for x
    x = 105,679,812,247,427,904/408,687,410.54
  6. Step 6: Final answer
    x = 258,583,478.53

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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.