Home / 39,631,302,277.20-54,691,206,069.87-21,809,959,783.20

Finding the Fourth Proportional to 39,631,302,277.20, 54,691,206,069.87 and 21,809,959,783.20

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Solution

The fourth proportional to 39,631,302,277.20, 54,691,206,069.87 and 21,809,959,783.20 is: 30,097,749,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631,302,277.20 : 54,691,206,069.87 = 21,809,959,783.20 : x
  2. Step 2: Convert to fraction form
    39,631,302,277.20/54,691,206,069.87 = 21,809,959,783.20/x
  3. Step 3: Cross multiply
    39,631,302,277.20x = 54,691,206,069.87 × 21,809,959,783.20
  4. Step 4: Simplify right side
    39,631,302,277.20x = 1,192,813,004,878,612,004,864
  5. Step 5: Solve for x
    x = 1,192,813,004,878,612,004,864/39,631,302,277.20
  6. Step 6: Final answer
    x = 30,097,749,413.72

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Double scale
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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.