Home / 20,647,491,731,836-30,955,969,112,709-12,486,617,703,406

Finding the Fourth Proportional to 20,647,491,731,836, 30,955,969,112,709 and 12,486,617,703,406

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Solution

The fourth proportional to 20,647,491,731,836, 30,955,969,112,709 and 12,486,617,703,406 is: 18,720,692,903,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,836 : 30,955,969,112,709 = 12,486,617,703,406 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,836/30,955,969,112,709 = 12,486,617,703,406/x
  3. Step 3: Cross multiply
    20,647,491,731,836x = 30,955,969,112,709 × 12,486,617,703,406
  4. Step 4: Simplify right side
    20,647,491,731,836x = 386,535,351,948,841,548,584,583,168
  5. Step 5: Solve for x
    x = 386,535,351,948,841,548,584,583,168/20,647,491,731,836
  6. Step 6: Final answer
    x = 18,720,692,903,964.19

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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.