Home / 81,873,640.80-122,810,461.20-33,326,505.45

Finding the Fourth Proportional to 81,873,640.80, 122,810,461.20 and 33,326,505.45

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Solution

The fourth proportional to 81,873,640.80, 122,810,461.20 and 33,326,505.45 is: 49,989,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873,640.80 : 122,810,461.20 = 33,326,505.45 : x
  2. Step 2: Convert to fraction form
    81,873,640.80/122,810,461.20 = 33,326,505.45/x
  3. Step 3: Cross multiply
    81,873,640.80x = 122,810,461.20 × 33,326,505.45
  4. Step 4: Simplify right side
    81,873,640.80x = 4,092,843,504,498,813.50
  5. Step 5: Solve for x
    x = 4,092,843,504,498,813.50/81,873,640.80
  6. Step 6: Final answer
    x = 49,989,758.18

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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.