Home / 259,306,939.79-388,961,073.99-105,952,996.23

Finding the Fourth Proportional to 259,306,939.79, 388,961,073.99 and 105,952,996.23

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Solution

The fourth proportional to 259,306,939.79, 388,961,073.99 and 105,952,996.23 is: 158,929,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,306,939.79 : 388,961,073.99 = 105,952,996.23 : x
  2. Step 2: Convert to fraction form
    259,306,939.79/388,961,073.99 = 105,952,996.23/x
  3. Step 3: Cross multiply
    259,306,939.79x = 388,961,073.99 × 105,952,996.23
  4. Step 4: Simplify right side
    259,306,939.79x = 41,211,591,207,105,368
  5. Step 5: Solve for x
    x = 41,211,591,207,105,368/259,306,939.79
  6. Step 6: Final answer
    x = 158,929,765.78

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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.