Home / 378,992,716.80-568,489,075.20-231,677,271.60

Finding the Fourth Proportional to 378,992,716.80, 568,489,075.20 and 231,677,271.60

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Solution

The fourth proportional to 378,992,716.80, 568,489,075.20 and 231,677,271.60 is: 347,515,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,992,716.80 : 568,489,075.20 = 231,677,271.60 : x
  2. Step 2: Convert to fraction form
    378,992,716.80/568,489,075.20 = 231,677,271.60/x
  3. Step 3: Cross multiply
    378,992,716.80x = 568,489,075.20 × 231,677,271.60
  4. Step 4: Simplify right side
    378,992,716.80x = 131,705,997,876,743,232
  5. Step 5: Solve for x
    x = 131,705,997,876,743,232/378,992,716.80
  6. Step 6: Final answer
    x = 347,515,907.40

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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.