Home / 538,449,428.41-743,117,338.19-315,618,329.39

Finding the Fourth Proportional to 538,449,428.41, 743,117,338.19 and 315,618,329.39

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Solution

The fourth proportional to 538,449,428.41, 743,117,338.19 and 315,618,329.39 is: 435,586,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,449,428.41 : 743,117,338.19 = 315,618,329.39 : x
  2. Step 2: Convert to fraction form
    538,449,428.41/743,117,338.19 = 315,618,329.39/x
  3. Step 3: Cross multiply
    538,449,428.41x = 743,117,338.19 × 315,618,329.39
  4. Step 4: Simplify right side
    538,449,428.41x = 234,541,452,817,344,896
  5. Step 5: Solve for x
    x = 234,541,452,817,344,896/538,449,428.41
  6. Step 6: Final answer
    x = 435,586,780.19

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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.