Home / 257,645,512.80-386,335,882.80-75,869,071.20

Finding the Fourth Proportional to 257,645,512.80, 386,335,882.80 and 75,869,071.20

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Solution

The fourth proportional to 257,645,512.80, 386,335,882.80 and 75,869,071.20 is: 113,764,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,645,512.80 : 386,335,882.80 = 75,869,071.20 : x
  2. Step 2: Convert to fraction form
    257,645,512.80/386,335,882.80 = 75,869,071.20/x
  3. Step 3: Cross multiply
    257,645,512.80x = 386,335,882.80 × 75,869,071.20
  4. Step 4: Simplify right side
    257,645,512.80x = 29,310,944,599,268,056
  5. Step 5: Solve for x
    x = 29,310,944,599,268,056/257,645,512.80
  6. Step 6: Final answer
    x = 113,764,622.88

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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.