Home / 664,580,601.60-997,768,447.20-388,514,716.80

Finding the Fourth Proportional to 664,580,601.60, 997,768,447.20 and 388,514,716.80

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Solution

The fourth proportional to 664,580,601.60, 997,768,447.20 and 388,514,716.80 is: 583,296,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,580,601.60 : 997,768,447.20 = 388,514,716.80 : x
  2. Step 2: Convert to fraction form
    664,580,601.60/997,768,447.20 = 388,514,716.80/x
  3. Step 3: Cross multiply
    664,580,601.60x = 997,768,447.20 × 388,514,716.80
  4. Step 4: Simplify right side
    664,580,601.60x = 387,647,725,695,883,776
  5. Step 5: Solve for x
    x = 387,647,725,695,883,776/664,580,601.60
  6. Step 6: Final answer
    x = 583,296,781.10

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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.