Home / 821,960,616.31-1,232,940,900.64-379,172,289.25

Finding the Fourth Proportional to 821,960,616.31, 1,232,940,900.64 and 379,172,289.25

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Solution

The fourth proportional to 821,960,616.31, 1,232,940,900.64 and 379,172,289.25 is: 568,758,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,960,616.31 : 1,232,940,900.64 = 379,172,289.25 : x
  2. Step 2: Convert to fraction form
    821,960,616.31/1,232,940,900.64 = 379,172,289.25/x
  3. Step 3: Cross multiply
    821,960,616.31x = 1,232,940,900.64 × 379,172,289.25
  4. Step 4: Simplify right side
    821,960,616.31x = 467,497,023,801,595,328
  5. Step 5: Solve for x
    x = 467,497,023,801,595,328/821,960,616.31
  6. Step 6: Final answer
    x = 568,758,422.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.