Home / 311,320,988,936.82-429,611,450,797.17-168,747,187,884.66

Finding the Fourth Proportional to 311,320,988,936.82, 429,611,450,797.17 and 168,747,187,884.66

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Solution

The fourth proportional to 311,320,988,936.82, 429,611,450,797.17 and 168,747,187,884.66 is: 232,864,878,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,320,988,936.82 : 429,611,450,797.17 = 168,747,187,884.66 : x
  2. Step 2: Convert to fraction form
    311,320,988,936.82/429,611,450,797.17 = 168,747,187,884.66/x
  3. Step 3: Cross multiply
    311,320,988,936.82x = 429,611,450,797.17 × 168,747,187,884.66
  4. Step 4: Simplify right side
    311,320,988,936.82x = 72,495,724,205,071,413,542,912
  5. Step 5: Solve for x
    x = 72,495,724,205,071,413,542,912/311,320,988,936.82
  6. Step 6: Final answer
    x = 232,864,878,313.05

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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.