Home / 80,629,866.50-111,278,662.13-45,827,788.31

Finding the Fourth Proportional to 80,629,866.50, 111,278,662.13 and 45,827,788.31

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Solution

The fourth proportional to 80,629,866.50, 111,278,662.13 and 45,827,788.31 is: 63,247,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629,866.50 : 111,278,662.13 = 45,827,788.31 : x
  2. Step 2: Convert to fraction form
    80,629,866.50/111,278,662.13 = 45,827,788.31/x
  3. Step 3: Cross multiply
    80,629,866.50x = 111,278,662.13 × 45,827,788.31
  4. Step 4: Simplify right side
    80,629,866.50x = 5,099,654,970,728,121
  5. Step 5: Solve for x
    x = 5,099,654,970,728,121/80,629,866.50
  6. Step 6: Final answer
    x = 63,247,716.91

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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.