Home / 69,783,112.71-104,690,280.83-21,264,763.73

Finding the Fourth Proportional to 69,783,112.71, 104,690,280.83 and 21,264,763.73

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Solution

The fourth proportional to 69,783,112.71, 104,690,280.83 and 21,264,763.73 is: 31,901,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,783,112.71 : 104,690,280.83 = 21,264,763.73 : x
  2. Step 2: Convert to fraction form
    69,783,112.71/104,690,280.83 = 21,264,763.73/x
  3. Step 3: Cross multiply
    69,783,112.71x = 104,690,280.83 × 21,264,763.73
  4. Step 4: Simplify right side
    69,783,112.71x = 2,226,214,086,047,523.25
  5. Step 5: Solve for x
    x = 2,226,214,086,047,523.25/69,783,112.71
  6. Step 6: Final answer
    x = 31,901,902.90

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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.