Home / 664,285,091.80-996,422,388.90-172,997,411.80

Finding the Fourth Proportional to 664,285,091.80, 996,422,388.90 and 172,997,411.80

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Solution

The fourth proportional to 664,285,091.80, 996,422,388.90 and 172,997,411.80 is: 259,494,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,285,091.80 : 996,422,388.90 = 172,997,411.80 : x
  2. Step 2: Convert to fraction form
    664,285,091.80/996,422,388.90 = 172,997,411.80/x
  3. Step 3: Cross multiply
    664,285,091.80x = 996,422,388.90 × 172,997,411.80
  4. Step 4: Simplify right side
    664,285,091.80x = 172,378,494,339,273,056
  5. Step 5: Solve for x
    x = 172,378,494,339,273,056/664,285,091.80
  6. Step 6: Final answer
    x = 259,494,750.77

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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.