Home / 20,969,543,971.10-28,937,775,109.84-11,454,092,078.78

Finding the Fourth Proportional to 20,969,543,971.10, 28,937,775,109.84 and 11,454,092,078.78

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Solution

The fourth proportional to 20,969,543,971.10, 28,937,775,109.84 and 11,454,092,078.78 is: 15,806,540,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,543,971.10 : 28,937,775,109.84 = 11,454,092,078.78 : x
  2. Step 2: Convert to fraction form
    20,969,543,971.10/28,937,775,109.84 = 11,454,092,078.78/x
  3. Step 3: Cross multiply
    20,969,543,971.10x = 28,937,775,109.84 × 11,454,092,078.78
  4. Step 4: Simplify right side
    20,969,543,971.10x = 331,455,940,663,135,436,800
  5. Step 5: Solve for x
    x = 331,455,940,663,135,436,800/20,969,543,971.10
  6. Step 6: Final answer
    x = 15,806,540,243.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.