Home / 398,568,704.70-598,104,999.45-234,806,144.70

Finding the Fourth Proportional to 398,568,704.70, 598,104,999.45 and 234,806,144.70

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Solution

The fourth proportional to 398,568,704.70, 598,104,999.45 and 234,806,144.70 is: 352,357,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,568,704.70 : 598,104,999.45 = 234,806,144.70 : x
  2. Step 2: Convert to fraction form
    398,568,704.70/598,104,999.45 = 234,806,144.70/x
  3. Step 3: Cross multiply
    398,568,704.70x = 598,104,999.45 × 234,806,144.70
  4. Step 4: Simplify right side
    398,568,704.70x = 140,438,729,046,650,128
  5. Step 5: Solve for x
    x = 140,438,729,046,650,128/398,568,704.70
  6. Step 6: Final answer
    x = 352,357,642.21

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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.