Home / 485,958,344.32-728,969,839.67-170,786,255.14

Finding the Fourth Proportional to 485,958,344.32, 728,969,839.67 and 170,786,255.14

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Solution

The fourth proportional to 485,958,344.32, 728,969,839.67 and 170,786,255.14 is: 256,190,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,958,344.32 : 728,969,839.67 = 170,786,255.14 : x
  2. Step 2: Convert to fraction form
    485,958,344.32/728,969,839.67 = 170,786,255.14/x
  3. Step 3: Cross multiply
    485,958,344.32x = 728,969,839.67 × 170,786,255.14
  4. Step 4: Simplify right side
    485,958,344.32x = 124,498,029,026,391,568
  5. Step 5: Solve for x
    x = 124,498,029,026,391,568/485,958,344.32
  6. Step 6: Final answer
    x = 256,190,742.44

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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.