Home / 491,659,418.14-678,469,807.34-268,648,755.48

Finding the Fourth Proportional to 491,659,418.14, 678,469,807.34 and 268,648,755.48

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Solution

The fourth proportional to 491,659,418.14, 678,469,807.34 and 268,648,755.48 is: 370,724,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,659,418.14 : 678,469,807.34 = 268,648,755.48 : x
  2. Step 2: Convert to fraction form
    491,659,418.14/678,469,807.34 = 268,648,755.48/x
  3. Step 3: Cross multiply
    491,659,418.14x = 678,469,807.34 × 268,648,755.48
  4. Step 4: Simplify right side
    491,659,418.14x = 182,270,069,372,310,560
  5. Step 5: Solve for x
    x = 182,270,069,372,310,560/491,659,418.14
  6. Step 6: Final answer
    x = 370,724,250.67

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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.