Home / 81,092,786.76-111,907,154.82-43,922,142.28

Finding the Fourth Proportional to 81,092,786.76, 111,907,154.82 and 43,922,142.28

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Solution

The fourth proportional to 81,092,786.76, 111,907,154.82 and 43,922,142.28 is: 60,612,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,092,786.76 : 111,907,154.82 = 43,922,142.28 : x
  2. Step 2: Convert to fraction form
    81,092,786.76/111,907,154.82 = 43,922,142.28/x
  3. Step 3: Cross multiply
    81,092,786.76x = 111,907,154.82 × 43,922,142.28
  4. Step 4: Simplify right side
    81,092,786.76x = 4,915,201,976,154,028
  5. Step 5: Solve for x
    x = 4,915,201,976,154,028/81,092,786.76
  6. Step 6: Final answer
    x = 60,612,073.81

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1.5x scale

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.