Home / 81,099,643.25-111,916,581.04-43,929,222.77

Finding the Fourth Proportional to 81,099,643.25, 111,916,581.04 and 43,929,222.77

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Solution

The fourth proportional to 81,099,643.25, 111,916,581.04 and 43,929,222.77 is: 60,621,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,099,643.25 : 111,916,581.04 = 43,929,222.77 : x
  2. Step 2: Convert to fraction form
    81,099,643.25/111,916,581.04 = 43,929,222.77/x
  3. Step 3: Cross multiply
    81,099,643.25x = 111,916,581.04 × 43,929,222.77
  4. Step 4: Simplify right side
    81,099,643.25x = 4,916,408,420,162,919
  5. Step 5: Solve for x
    x = 4,916,408,420,162,919/81,099,643.25
  6. Step 6: Final answer
    x = 60,621,825.49

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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.