Home / 1,491,016,205.68-2,057,608,578.71-821,946,552.10

Finding the Fourth Proportional to 1,491,016,205.68, 2,057,608,578.71 and 821,946,552.10

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Solution

The fourth proportional to 1,491,016,205.68, 2,057,608,578.71 and 821,946,552.10 is: 1,134,289,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,016,205.68 : 2,057,608,578.71 = 821,946,552.10 : x
  2. Step 2: Convert to fraction form
    1,491,016,205.68/2,057,608,578.71 = 821,946,552.10/x
  3. Step 3: Cross multiply
    1,491,016,205.68x = 2,057,608,578.71 × 821,946,552.10
  4. Step 4: Simplify right side
    1,491,016,205.68x = 1,691,244,276,838,976,768
  5. Step 5: Solve for x
    x = 1,691,244,276,838,976,768/1,491,016,205.68
  6. Step 6: Final answer
    x = 1,134,289,667.95

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Double scale
Find fourth proportional to 1,491,016,206.68, 2,057,608,580.09 and 821,946,553.10
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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.