Home / 681,029,321,865.45-1,021,544,965,972-278,112,792,155.27

Finding the Fourth Proportional to 681,029,321,865.45, 1,021,544,965,972 and 278,112,792,155.27

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Solution

The fourth proportional to 681,029,321,865.45, 1,021,544,965,972 and 278,112,792,155.27 is: 417,169,589,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,029,321,865.45 : 1,021,544,965,972 = 278,112,792,155.27 : x
  2. Step 2: Convert to fraction form
    681,029,321,865.45/1,021,544,965,972 = 278,112,792,155.27/x
  3. Step 3: Cross multiply
    681,029,321,865.45x = 1,021,544,965,972 × 278,112,792,155.27
  4. Step 4: Simplify right side
    681,029,321,865.45x = 284,104,722,798,633,231,056,896
  5. Step 5: Solve for x
    x = 284,104,722,798,633,231,056,896/681,029,321,865.45
  6. Step 6: Final answer
    x = 417,169,589,732.82

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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.