Home / 408,620,443.80-612,930,665.70-271,862,376.60

Finding the Fourth Proportional to 408,620,443.80, 612,930,665.70 and 271,862,376.60

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Solution

The fourth proportional to 408,620,443.80, 612,930,665.70 and 271,862,376.60 is: 407,793,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,620,443.80 : 612,930,665.70 = 271,862,376.60 : x
  2. Step 2: Convert to fraction form
    408,620,443.80/612,930,665.70 = 271,862,376.60/x
  3. Step 3: Cross multiply
    408,620,443.80x = 612,930,665.70 × 271,862,376.60
  4. Step 4: Simplify right side
    408,620,443.80x = 166,632,787,468,222,144
  5. Step 5: Solve for x
    x = 166,632,787,468,222,144/408,620,443.80
  6. Step 6: Final answer
    x = 407,793,564.90

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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.