Home / 20,647,491,731,854-30,955,969,112,732-12,486,617,703,423

Finding the Fourth Proportional to 20,647,491,731,854, 30,955,969,112,732 and 12,486,617,703,423

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Solution

The fourth proportional to 20,647,491,731,854, 30,955,969,112,732 and 12,486,617,703,423 is: 18,720,692,903,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,854 : 30,955,969,112,732 = 12,486,617,703,423 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,854/30,955,969,112,732 = 12,486,617,703,423/x
  3. Step 3: Cross multiply
    20,647,491,731,854x = 30,955,969,112,732 × 12,486,617,703,423
  4. Step 4: Simplify right side
    20,647,491,731,854x = 386,535,351,949,654,981,030,707,200
  5. Step 5: Solve for x
    x = 386,535,351,949,654,981,030,707,200/20,647,491,731,854
  6. Step 6: Final answer
    x = 18,720,692,903,987.27

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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.