Home / 81,099,642.25-111,916,579.66-43,929,221.77

Finding the Fourth Proportional to 81,099,642.25, 111,916,579.66 and 43,929,221.77

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Solution

The fourth proportional to 81,099,642.25, 111,916,579.66 and 43,929,221.77 is: 60,621,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,099,642.25 : 111,916,579.66 = 43,929,221.77 : x
  2. Step 2: Convert to fraction form
    81,099,642.25/111,916,579.66 = 43,929,221.77/x
  3. Step 3: Cross multiply
    81,099,642.25x = 111,916,579.66 × 43,929,221.77
  4. Step 4: Simplify right side
    81,099,642.25x = 4,916,408,247,624,011
  5. Step 5: Solve for x
    x = 4,916,408,247,624,011/81,099,642.25
  6. Step 6: Final answer
    x = 60,621,824.11

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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.