Home / 664,285,070.80-996,422,357.40-172,997,390.80

Finding the Fourth Proportional to 664,285,070.80, 996,422,357.40 and 172,997,390.80

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Solution

The fourth proportional to 664,285,070.80, 996,422,357.40 and 172,997,390.80 is: 259,494,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,285,070.80 : 996,422,357.40 = 172,997,390.80 : x
  2. Step 2: Convert to fraction form
    664,285,070.80/996,422,357.40 = 172,997,390.80/x
  3. Step 3: Cross multiply
    664,285,070.80x = 996,422,357.40 × 172,997,390.80
  4. Step 4: Simplify right side
    664,285,070.80x = 172,378,467,964,985,088
  5. Step 5: Solve for x
    x = 172,378,467,964,985,088/664,285,070.80
  6. Step 6: Final answer
    x = 259,494,719.27

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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.