Home / 20,647,491,731,751-30,955,969,112,580-12,486,617,703,321

Finding the Fourth Proportional to 20,647,491,731,751, 30,955,969,112,580 and 12,486,617,703,321

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Solution

The fourth proportional to 20,647,491,731,751, 30,955,969,112,580 and 12,486,617,703,321 is: 18,720,692,903,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,751 : 30,955,969,112,580 = 12,486,617,703,321 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,751/30,955,969,112,580 = 12,486,617,703,321/x
  3. Step 3: Cross multiply
    20,647,491,731,751x = 30,955,969,112,580 × 12,486,617,703,321
  4. Step 4: Simplify right side
    20,647,491,731,751x = 386,535,351,944,599,495,285,669,888
  5. Step 5: Solve for x
    x = 386,535,351,944,599,495,285,669,888/20,647,491,731,751
  6. Step 6: Final answer
    x = 18,720,692,903,835.81

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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.