Home / 205,666,311.38-308,522,876.78-74,570,324.36

Finding the Fourth Proportional to 205,666,311.38, 308,522,876.78 and 74,570,324.36

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Solution

The fourth proportional to 205,666,311.38, 308,522,876.78 and 74,570,324.36 is: 111,863,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,666,311.38 : 308,522,876.78 = 74,570,324.36 : x
  2. Step 2: Convert to fraction form
    205,666,311.38/308,522,876.78 = 74,570,324.36/x
  3. Step 3: Cross multiply
    205,666,311.38x = 308,522,876.78 × 74,570,324.36
  4. Step 4: Simplify right side
    205,666,311.38x = 23,006,650,992,608,728
  5. Step 5: Solve for x
    x = 23,006,650,992,608,728/205,666,311.38
  6. Step 6: Final answer
    x = 111,863,974.41

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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.