Home / 463,320,986.87-639,395,447.96-272,595,317.78

Finding the Fourth Proportional to 463,320,986.87, 639,395,447.96 and 272,595,317.78

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Solution

The fourth proportional to 463,320,986.87, 639,395,447.96 and 272,595,317.78 is: 376,188,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,320,986.87 : 639,395,447.96 = 272,595,317.78 : x
  2. Step 2: Convert to fraction form
    463,320,986.87/639,395,447.96 = 272,595,317.78/x
  3. Step 3: Cross multiply
    463,320,986.87x = 639,395,447.96 × 272,595,317.78
  4. Step 4: Simplify right side
    463,320,986.87x = 174,296,205,323,741,632
  5. Step 5: Solve for x
    x = 174,296,205,323,741,632/463,320,986.87
  6. Step 6: Final answer
    x = 376,188,884.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.