Home / 20,647,491,731,838-30,955,969,112,712-12,486,617,703,408

Finding the Fourth Proportional to 20,647,491,731,838, 30,955,969,112,712 and 12,486,617,703,408

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Solution

The fourth proportional to 20,647,491,731,838, 30,955,969,112,712 and 12,486,617,703,408 is: 18,720,692,903,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,838 : 30,955,969,112,712 = 12,486,617,703,408 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,838/30,955,969,112,712 = 12,486,617,703,408/x
  3. Step 3: Cross multiply
    20,647,491,731,838x = 30,955,969,112,712 × 12,486,617,703,408
  4. Step 4: Simplify right side
    20,647,491,731,838x = 386,535,351,948,940,916,947,943,424
  5. Step 5: Solve for x
    x = 386,535,351,948,940,916,947,943,424/20,647,491,731,838
  6. Step 6: Final answer
    x = 18,720,692,903,967.19

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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.