Home / 20,647,491,731,857-30,955,969,112,736-12,486,617,703,426

Finding the Fourth Proportional to 20,647,491,731,857, 30,955,969,112,736 and 12,486,617,703,426

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Solution

The fourth proportional to 20,647,491,731,857, 30,955,969,112,736 and 12,486,617,703,426 is: 18,720,692,903,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,857 : 30,955,969,112,736 = 12,486,617,703,426 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,857/30,955,969,112,736 = 12,486,617,703,426/x
  3. Step 3: Cross multiply
    20,647,491,731,857x = 30,955,969,112,736 × 12,486,617,703,426
  4. Step 4: Simplify right side
    20,647,491,731,857x = 386,535,351,949,797,780,103,364,608
  5. Step 5: Solve for x
    x = 386,535,351,949,797,780,103,364,608/20,647,491,731,857
  6. Step 6: Final answer
    x = 18,720,692,903,991.46

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