Home / 21,716,920.80-29,961,850.32-13,881,016.44

Finding the Fourth Proportional to 21,716,920.80, 29,961,850.32 and 13,881,016.44

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Solution

The fourth proportional to 21,716,920.80, 29,961,850.32 and 13,881,016.44 is: 19,151,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716,920.80 : 29,961,850.32 = 13,881,016.44 : x
  2. Step 2: Convert to fraction form
    21,716,920.80/29,961,850.32 = 13,881,016.44/x
  3. Step 3: Cross multiply
    21,716,920.80x = 29,961,850.32 × 13,881,016.44
  4. Step 4: Simplify right side
    21,716,920.80x = 415,900,936,864,739.25
  5. Step 5: Solve for x
    x = 415,900,936,864,739.25/21,716,920.80
  6. Step 6: Final answer
    x = 19,151,008.59

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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.