Home / 21,476,721.54-29,638,232.45-11,687,578.32

Finding the Fourth Proportional to 21,476,721.54, 29,638,232.45 and 11,687,578.32

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Solution

The fourth proportional to 21,476,721.54, 29,638,232.45 and 11,687,578.32 is: 16,129,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476,721.54 : 29,638,232.45 = 11,687,578.32 : x
  2. Step 2: Convert to fraction form
    21,476,721.54/29,638,232.45 = 11,687,578.32/x
  3. Step 3: Cross multiply
    21,476,721.54x = 29,638,232.45 × 11,687,578.32
  4. Step 4: Simplify right side
    21,476,721.54x = 346,399,163,188,005.31
  5. Step 5: Solve for x
    x = 346,399,163,188,005.31/21,476,721.54
  6. Step 6: Final answer
    x = 16,129,052.22

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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.