Home / 39,631,302,278.20-54,691,206,071.25-21,809,959,784.20

Finding the Fourth Proportional to 39,631,302,278.20, 54,691,206,071.25 and 21,809,959,784.20

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Solution

The fourth proportional to 39,631,302,278.20, 54,691,206,071.25 and 21,809,959,784.20 is: 30,097,749,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631,302,278.20 : 54,691,206,071.25 = 21,809,959,784.20 : x
  2. Step 2: Convert to fraction form
    39,631,302,278.20/54,691,206,071.25 = 21,809,959,784.20/x
  3. Step 3: Cross multiply
    39,631,302,278.20x = 54,691,206,071.25 × 21,809,959,784.20
  4. Step 4: Simplify right side
    39,631,302,278.20x = 1,192,813,004,963,357,392,896
  5. Step 5: Solve for x
    x = 1,192,813,004,963,357,392,896/39,631,302,278.20
  6. Step 6: Final answer
    x = 30,097,749,415.10

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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.