Home / 647,100,939.80-970,651,409.70-449,086,023.20

Finding the Fourth Proportional to 647,100,939.80, 970,651,409.70 and 449,086,023.20

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Solution

The fourth proportional to 647,100,939.80, 970,651,409.70 and 449,086,023.20 is: 673,629,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,100,939.80 : 970,651,409.70 = 449,086,023.20 : x
  2. Step 2: Convert to fraction form
    647,100,939.80/970,651,409.70 = 449,086,023.20/x
  3. Step 3: Cross multiply
    647,100,939.80x = 970,651,409.70 × 449,086,023.20
  4. Step 4: Simplify right side
    647,100,939.80x = 435,905,981,495,646,912
  5. Step 5: Solve for x
    x = 435,905,981,495,646,912/647,100,939.80
  6. Step 6: Final answer
    x = 673,629,034.80

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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.