Home / 643,387,208.64-964,640,230.26-327,642,046.82

Finding the Fourth Proportional to 643,387,208.64, 964,640,230.26 and 327,642,046.82

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Solution

The fourth proportional to 643,387,208.64, 964,640,230.26 and 327,642,046.82 is: 491,238,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,387,208.64 : 964,640,230.26 = 327,642,046.82 : x
  2. Step 2: Convert to fraction form
    643,387,208.64/964,640,230.26 = 327,642,046.82/x
  3. Step 3: Cross multiply
    643,387,208.64x = 964,640,230.26 × 327,642,046.82
  4. Step 4: Simplify right side
    643,387,208.64x = 316,056,699,487,302,464
  5. Step 5: Solve for x
    x = 316,056,699,487,302,464/643,387,208.64
  6. Step 6: Final answer
    x = 491,238,705.47

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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.