Home / 547,512,351.21-821,268,536.30-132,986,379.28

Finding the Fourth Proportional to 547,512,351.21, 821,268,536.30 and 132,986,379.28

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Solution

The fourth proportional to 547,512,351.21, 821,268,536.30 and 132,986,379.28 is: 199,479,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,512,351.21 : 821,268,536.30 = 132,986,379.28 : x
  2. Step 2: Convert to fraction form
    547,512,351.21/821,268,536.30 = 132,986,379.28/x
  3. Step 3: Cross multiply
    547,512,351.21x = 821,268,536.30 × 132,986,379.28
  4. Step 4: Simplify right side
    547,512,351.21x = 109,217,529,059,122,240
  5. Step 5: Solve for x
    x = 109,217,529,059,122,240/547,512,351.21
  6. Step 6: Final answer
    x = 199,479,571.22

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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.