Home / 20,969,543,969.10-28,937,775,107.07-11,454,092,076.78

Finding the Fourth Proportional to 20,969,543,969.10, 28,937,775,107.07 and 11,454,092,076.78

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Solution

The fourth proportional to 20,969,543,969.10, 28,937,775,107.07 and 11,454,092,076.78 is: 15,806,540,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,543,969.10 : 28,937,775,107.07 = 11,454,092,076.78 : x
  2. Step 2: Convert to fraction form
    20,969,543,969.10/28,937,775,107.07 = 11,454,092,076.78/x
  3. Step 3: Cross multiply
    20,969,543,969.10x = 28,937,775,107.07 × 11,454,092,076.78
  4. Step 4: Simplify right side
    20,969,543,969.10x = 331,455,940,573,531,996,160
  5. Step 5: Solve for x
    x = 331,455,940,573,531,996,160/20,969,543,969.10
  6. Step 6: Final answer
    x = 15,806,540,240.55

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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.