Home / 766,305,776.80-1,149,458,665.20-336,324,080.80

Finding the Fourth Proportional to 766,305,776.80, 1,149,458,665.20 and 336,324,080.80

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Solution

The fourth proportional to 766,305,776.80, 1,149,458,665.20 and 336,324,080.80 is: 504,486,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,305,776.80 : 1,149,458,665.20 = 336,324,080.80 : x
  2. Step 2: Convert to fraction form
    766,305,776.80/1,149,458,665.20 = 336,324,080.80/x
  3. Step 3: Cross multiply
    766,305,776.80x = 1,149,458,665.20 × 336,324,080.80
  4. Step 4: Simplify right side
    766,305,776.80x = 386,590,628,990,984,960
  5. Step 5: Solve for x
    x = 386,590,628,990,984,960/766,305,776.80
  6. Step 6: Final answer
    x = 504,486,121.20

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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.