Home / 20,647,491,731,837-30,955,969,112,710-12,486,617,703,407

Finding the Fourth Proportional to 20,647,491,731,837, 30,955,969,112,710 and 12,486,617,703,407

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Solution

The fourth proportional to 20,647,491,731,837, 30,955,969,112,710 and 12,486,617,703,407 is: 18,720,692,903,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,837 : 30,955,969,112,710 = 12,486,617,703,407 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,837/30,955,969,112,710 = 12,486,617,703,407/x
  3. Step 3: Cross multiply
    20,647,491,731,837x = 30,955,969,112,710 × 12,486,617,703,407
  4. Step 4: Simplify right side
    20,647,491,731,837x = 386,535,351,948,884,979,293,880,320
  5. Step 5: Solve for x
    x = 386,535,351,948,884,979,293,880,320/20,647,491,731,837
  6. Step 6: Final answer
    x = 18,720,692,903,965.39

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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.