Home / 408,620,507.30-612,930,760.95-271,862,440.10

Finding the Fourth Proportional to 408,620,507.30, 612,930,760.95 and 271,862,440.10

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Solution

The fourth proportional to 408,620,507.30, 612,930,760.95 and 271,862,440.10 is: 407,793,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,620,507.30 : 612,930,760.95 = 271,862,440.10 : x
  2. Step 2: Convert to fraction form
    408,620,507.30/612,930,760.95 = 271,862,440.10/x
  3. Step 3: Cross multiply
    408,620,507.30x = 612,930,760.95 × 271,862,440.10
  4. Step 4: Simplify right side
    408,620,507.30x = 166,632,852,284,216,832
  5. Step 5: Solve for x
    x = 166,632,852,284,216,832/408,620,507.30
  6. Step 6: Final answer
    x = 407,793,660.15

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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.