Home / 418,607,215.31-627,917,481.78-233,040,629.21

Finding the Fourth Proportional to 418,607,215.31, 627,917,481.78 and 233,040,629.21

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Solution

The fourth proportional to 418,607,215.31, 627,917,481.78 and 233,040,629.21 is: 349,564,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,607,215.31 : 627,917,481.78 = 233,040,629.21 : x
  2. Step 2: Convert to fraction form
    418,607,215.31/627,917,481.78 = 233,040,629.21/x
  3. Step 3: Cross multiply
    418,607,215.31x = 627,917,481.78 × 233,040,629.21
  4. Step 4: Simplify right side
    418,607,215.31x = 146,330,285,041,958,752
  5. Step 5: Solve for x
    x = 146,330,285,041,958,752/418,607,215.31
  6. Step 6: Final answer
    x = 349,564,650.80

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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.