Home / 1,621,383,180.97-2,237,512,086.80-878,827,746.73

Finding the Fourth Proportional to 1,621,383,180.97, 2,237,512,086.80 and 878,827,746.73

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Solution

The fourth proportional to 1,621,383,180.97, 2,237,512,086.80 and 878,827,746.73 is: 1,212,784,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,383,180.97 : 2,237,512,086.80 = 878,827,746.73 : x
  2. Step 2: Convert to fraction form
    1,621,383,180.97/2,237,512,086.80 = 878,827,746.73/x
  3. Step 3: Cross multiply
    1,621,383,180.97x = 2,237,512,086.80 × 878,827,746.73
  4. Step 4: Simplify right side
    1,621,383,180.97x = 1,966,387,705,523,584,512
  5. Step 5: Solve for x
    x = 1,966,387,705,523,584,512/1,621,383,180.97
  6. Step 6: Final answer
    x = 1,212,784,077.57

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Double scale
Find fourth proportional to 1,621,383,181.97, 2,237,512,088.18 and 878,827,747.73
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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.