Home / 1,621,383,191.28-2,237,512,101-878,827,757.04

Finding the Fourth Proportional to 1,621,383,191.28, 2,237,512,101 and 878,827,757.04

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Solution

The fourth proportional to 1,621,383,191.28, 2,237,512,101 and 878,827,757.04 is: 1,212,784,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,383,191.28 : 2,237,512,101 = 878,827,757.04 : x
  2. Step 2: Convert to fraction form
    1,621,383,191.28/2,237,512,101 = 878,827,757.04/x
  3. Step 3: Cross multiply
    1,621,383,191.28x = 2,237,512,101 × 878,827,757.04
  4. Step 4: Simplify right side
    1,621,383,191.28x = 1,966,387,741,071,687,936
  5. Step 5: Solve for x
    x = 1,966,387,741,071,687,936/1,621,383,191.28
  6. Step 6: Final answer
    x = 1,212,784,091.78

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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.