Home / 643,132,099.21-964,744,258.29-269,263,760.31

Finding the Fourth Proportional to 643,132,099.21, 964,744,258.29 and 269,263,760.31

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Solution

The fourth proportional to 643,132,099.21, 964,744,258.29 and 269,263,760.31 is: 403,914,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,132,099.21 : 964,744,258.29 = 269,263,760.31 : x
  2. Step 2: Convert to fraction form
    643,132,099.21/964,744,258.29 = 269,263,760.31/x
  3. Step 3: Cross multiply
    643,132,099.21x = 964,744,258.29 × 269,263,760.31
  4. Step 4: Simplify right side
    643,132,099.21x = 259,770,666,724,647,296
  5. Step 5: Solve for x
    x = 259,770,666,724,647,296/643,132,099.21
  6. Step 6: Final answer
    x = 403,914,945.38

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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.