Home / 127,422,242.36-175,743,065.24-82,782,600.78

Finding the Fourth Proportional to 127,422,242.36, 175,743,065.24 and 82,782,600.78

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Solution

The fourth proportional to 127,422,242.36, 175,743,065.24 and 82,782,600.78 is: 114,175,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,422,242.36 : 175,743,065.24 = 82,782,600.78 : x
  2. Step 2: Convert to fraction form
    127,422,242.36/175,743,065.24 = 82,782,600.78/x
  3. Step 3: Cross multiply
    127,422,242.36x = 175,743,065.24 × 82,782,600.78
  4. Step 4: Simplify right side
    127,422,242.36x = 14,548,468,009,202,504
  5. Step 5: Solve for x
    x = 14,548,468,009,202,504/127,422,242.36
  6. Step 6: Final answer
    x = 114,175,262.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.