Home / 647,100,938.80-970,651,408.20-449,086,022.20

Finding the Fourth Proportional to 647,100,938.80, 970,651,408.20 and 449,086,022.20

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Solution

The fourth proportional to 647,100,938.80, 970,651,408.20 and 449,086,022.20 is: 673,629,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,100,938.80 : 970,651,408.20 = 449,086,022.20 : x
  2. Step 2: Convert to fraction form
    647,100,938.80/970,651,408.20 = 449,086,022.20/x
  3. Step 3: Cross multiply
    647,100,938.80x = 970,651,408.20 × 449,086,022.20
  4. Step 4: Simplify right side
    647,100,938.80x = 435,905,979,851,366,464
  5. Step 5: Solve for x
    x = 435,905,979,851,366,464/647,100,938.80
  6. Step 6: Final answer
    x = 673,629,033.30

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1.5x scale

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.