Home / 81,864,029.70-122,796,044.55-40,929,786.68

Finding the Fourth Proportional to 81,864,029.70, 122,796,044.55 and 40,929,786.68

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Solution

The fourth proportional to 81,864,029.70, 122,796,044.55 and 40,929,786.68 is: 61,394,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,864,029.70 : 122,796,044.55 = 40,929,786.68 : x
  2. Step 2: Convert to fraction form
    81,864,029.70/122,796,044.55 = 40,929,786.68/x
  3. Step 3: Cross multiply
    81,864,029.70x = 122,796,044.55 × 40,929,786.68
  4. Step 4: Simplify right side
    81,864,029.70x = 5,026,015,907,965,296
  5. Step 5: Solve for x
    x = 5,026,015,907,965,296/81,864,029.70
  6. Step 6: Final answer
    x = 61,394,680.01

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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.