Home / 664,285,171.80-996,422,508.90-172,997,491.80

Finding the Fourth Proportional to 664,285,171.80, 996,422,508.90 and 172,997,491.80

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Solution

The fourth proportional to 664,285,171.80, 996,422,508.90 and 172,997,491.80 is: 259,494,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,285,171.80 : 996,422,508.90 = 172,997,491.80 : x
  2. Step 2: Convert to fraction form
    664,285,171.80/996,422,508.90 = 172,997,491.80/x
  3. Step 3: Cross multiply
    664,285,171.80x = 996,422,508.90 × 172,997,491.80
  4. Step 4: Simplify right side
    664,285,171.80x = 172,378,594,812,763,200
  5. Step 5: Solve for x
    x = 172,378,594,812,763,200/664,285,171.80
  6. Step 6: Final answer
    x = 259,494,870.77

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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.