Home / 257,906,561.12-355,909,538.34-140,431,610.06

Finding the Fourth Proportional to 257,906,561.12, 355,909,538.34 and 140,431,610.06

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Solution

The fourth proportional to 257,906,561.12, 355,909,538.34 and 140,431,610.06 is: 193,794,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,906,561.12 : 355,909,538.34 = 140,431,610.06 : x
  2. Step 2: Convert to fraction form
    257,906,561.12/355,909,538.34 = 140,431,610.06/x
  3. Step 3: Cross multiply
    257,906,561.12x = 355,909,538.34 × 140,431,610.06
  4. Step 4: Simplify right side
    257,906,561.12x = 49,980,949,504,797,496
  5. Step 5: Solve for x
    x = 49,980,949,504,797,496/257,906,561.12
  6. Step 6: Final answer
    x = 193,794,796.41

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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.