Home / 647,376,223.78-893,448,422.28-396,647,010.10

Finding the Fourth Proportional to 647,376,223.78, 893,448,422.28 and 396,647,010.10

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Solution

The fourth proportional to 647,376,223.78, 893,448,422.28 and 396,647,010.10 is: 547,415,293.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,376,223.78 : 893,448,422.28 = 396,647,010.10 : x
  2. Step 2: Convert to fraction form
    647,376,223.78/893,448,422.28 = 396,647,010.10/x
  3. Step 3: Cross multiply
    647,376,223.78x = 893,448,422.28 × 396,647,010.10
  4. Step 4: Simplify right side
    647,376,223.78x = 354,383,645,375,924,224
  5. Step 5: Solve for x
    x = 354,383,645,375,924,224/647,376,223.78
  6. Step 6: Final answer
    x = 547,415,293.24

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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.