Home / 39,631,302,426.36-54,691,206,275.46-21,809,959,932.36

Finding the Fourth Proportional to 39,631,302,426.36, 54,691,206,275.46 and 21,809,959,932.36

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Solution

The fourth proportional to 39,631,302,426.36, 54,691,206,275.46 and 21,809,959,932.36 is: 30,097,749,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631,302,426.36 : 54,691,206,275.46 = 21,809,959,932.36 : x
  2. Step 2: Convert to fraction form
    39,631,302,426.36/54,691,206,275.46 = 21,809,959,932.36/x
  3. Step 3: Cross multiply
    39,631,302,426.36x = 54,691,206,275.46 × 21,809,959,932.36
  4. Step 4: Simplify right side
    39,631,302,426.36x = 1,192,813,017,520,218,308,608
  5. Step 5: Solve for x
    x = 1,192,813,017,520,218,308,608/39,631,302,426.36
  6. Step 6: Final answer
    x = 30,097,749,619.42

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Double scale
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1.5x scale

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.