Home / 491,627,843.61-678,438,503.89-268,604,735.10

Finding the Fourth Proportional to 491,627,843.61, 678,438,503.89 and 268,604,735.10

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Solution

The fourth proportional to 491,627,843.61, 678,438,503.89 and 268,604,735.10 is: 370,670,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,627,843.61 : 678,438,503.89 = 268,604,735.10 : x
  2. Step 2: Convert to fraction form
    491,627,843.61/678,438,503.89 = 268,604,735.10/x
  3. Step 3: Cross multiply
    491,627,843.61x = 678,438,503.89 × 268,604,735.10
  4. Step 4: Simplify right side
    491,627,843.61x = 182,231,794,619,013,792
  5. Step 5: Solve for x
    x = 182,231,794,619,013,792/491,627,843.61
  6. Step 6: Final answer
    x = 370,670,207.12

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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.