Home / 2,120,571,717.62-3,179,793,365.83-1,235,543,091.28

Finding the Fourth Proportional to 2,120,571,717.62, 3,179,793,365.83 and 1,235,543,091.28

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Solution

The fourth proportional to 2,120,571,717.62, 3,179,793,365.83 and 1,235,543,091.28 is: 1,852,694,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,571,717.62 : 3,179,793,365.83 = 1,235,543,091.28 : x
  2. Step 2: Convert to fraction form
    2,120,571,717.62/3,179,793,365.83 = 1,235,543,091.28/x
  3. Step 3: Cross multiply
    2,120,571,717.62x = 3,179,793,365.83 × 1,235,543,091.28
  4. Step 4: Simplify right side
    2,120,571,717.62x = 3,928,771,724,849,233,920
  5. Step 5: Solve for x
    x = 3,928,771,724,849,233,920/2,120,571,717.62
  6. Step 6: Final answer
    x = 1,852,694,578.64

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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.