Home / 408,620,519.80-612,930,779.70-271,862,452.60

Finding the Fourth Proportional to 408,620,519.80, 612,930,779.70 and 271,862,452.60

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Solution

The fourth proportional to 408,620,519.80, 612,930,779.70 and 271,862,452.60 is: 407,793,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,620,519.80 : 612,930,779.70 = 271,862,452.60 : x
  2. Step 2: Convert to fraction form
    408,620,519.80/612,930,779.70 = 271,862,452.60/x
  3. Step 3: Cross multiply
    408,620,519.80x = 612,930,779.70 × 271,862,452.60
  4. Step 4: Simplify right side
    408,620,519.80x = 166,632,865,043,272,320
  5. Step 5: Solve for x
    x = 166,632,865,043,272,320/408,620,519.80
  6. Step 6: Final answer
    x = 407,793,678.90

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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.