Home / 39,631,302,275.92-54,691,206,068.11-21,809,959,781.92

Finding the Fourth Proportional to 39,631,302,275.92, 54,691,206,068.11 and 21,809,959,781.92

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Solution

The fourth proportional to 39,631,302,275.92, 54,691,206,068.11 and 21,809,959,781.92 is: 30,097,749,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631,302,275.92 : 54,691,206,068.11 = 21,809,959,781.92 : x
  2. Step 2: Convert to fraction form
    39,631,302,275.92/54,691,206,068.11 = 21,809,959,781.92/x
  3. Step 3: Cross multiply
    39,631,302,275.92x = 54,691,206,068.11 × 21,809,959,781.92
  4. Step 4: Simplify right side
    39,631,302,275.92x = 1,192,813,004,770,177,974,272
  5. Step 5: Solve for x
    x = 1,192,813,004,770,177,974,272/39,631,302,275.92
  6. Step 6: Final answer
    x = 30,097,749,411.96

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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.