Home / 257,906,561.28-355,909,538.61-140,431,610.25

Finding the Fourth Proportional to 257,906,561.28, 355,909,538.61 and 140,431,610.25

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Solution

The fourth proportional to 257,906,561.28, 355,909,538.61 and 140,431,610.25 is: 193,794,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,906,561.28 : 355,909,538.61 = 140,431,610.25 : x
  2. Step 2: Convert to fraction form
    257,906,561.28/355,909,538.61 = 140,431,610.25/x
  3. Step 3: Cross multiply
    257,906,561.28x = 355,909,538.61 × 140,431,610.25
  4. Step 4: Simplify right side
    257,906,561.28x = 49,980,949,610,336,848
  5. Step 5: Solve for x
    x = 49,980,949,610,336,848/257,906,561.28
  6. Step 6: Final answer
    x = 193,794,796.70

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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.