Home / 20,647,491,731,856-30,955,969,112,734-12,486,617,703,425

Finding the Fourth Proportional to 20,647,491,731,856, 30,955,969,112,734 and 12,486,617,703,425

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Solution

The fourth proportional to 20,647,491,731,856, 30,955,969,112,734 and 12,486,617,703,425 is: 18,720,692,903,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,856 : 30,955,969,112,734 = 12,486,617,703,425 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,856/30,955,969,112,734 = 12,486,617,703,425/x
  3. Step 3: Cross multiply
    20,647,491,731,856x = 30,955,969,112,734 × 12,486,617,703,425
  4. Step 4: Simplify right side
    20,647,491,731,856x = 386,535,351,949,741,842,449,301,504
  5. Step 5: Solve for x
    x = 386,535,351,949,741,842,449,301,504/20,647,491,731,856
  6. Step 6: Final answer
    x = 18,720,692,903,989.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.