Home / 631,067,998.20-946,601,997.30-427,224,823.80

Finding the Fourth Proportional to 631,067,998.20, 946,601,997.30 and 427,224,823.80

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Solution

The fourth proportional to 631,067,998.20, 946,601,997.30 and 427,224,823.80 is: 640,837,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,067,998.20 : 946,601,997.30 = 427,224,823.80 : x
  2. Step 2: Convert to fraction form
    631,067,998.20/946,601,997.30 = 427,224,823.80/x
  3. Step 3: Cross multiply
    631,067,998.20x = 946,601,997.30 × 427,224,823.80
  4. Step 4: Simplify right side
    631,067,998.20x = 404,411,871,505,220,544
  5. Step 5: Solve for x
    x = 404,411,871,505,220,544/631,067,998.20
  6. Step 6: Final answer
    x = 640,837,235.70

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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.