Home / 538,449,418.28-743,117,324.20-315,618,319.26

Finding the Fourth Proportional to 538,449,418.28, 743,117,324.20 and 315,618,319.26

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Solution

The fourth proportional to 538,449,418.28, 743,117,324.20 and 315,618,319.26 is: 435,586,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,449,418.28 : 743,117,324.20 = 315,618,319.26 : x
  2. Step 2: Convert to fraction form
    538,449,418.28/743,117,324.20 = 315,618,319.26/x
  3. Step 3: Cross multiply
    538,449,418.28x = 743,117,324.20 × 315,618,319.26
  4. Step 4: Simplify right side
    538,449,418.28x = 234,541,440,877,970,912
  5. Step 5: Solve for x
    x = 234,541,440,877,970,912/538,449,418.28
  6. Step 6: Final answer
    x = 435,586,766.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.