Home / 21,320,392-29,422,142.08-11,530,833.44

Finding the Fourth Proportional to 21,320,392, 29,422,142.08 and 11,530,833.44

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Solution

The fourth proportional to 21,320,392, 29,422,142.08 and 11,530,833.44 is: 15,912,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,392 : 29,422,142.08 = 11,530,833.44 : x
  2. Step 2: Convert to fraction form
    21,320,392/29,422,142.08 = 11,530,833.44/x
  3. Step 3: Cross multiply
    21,320,392x = 29,422,142.08 × 11,530,833.44
  4. Step 4: Simplify right side
    21,320,392x = 339,261,819,772,495.12
  5. Step 5: Solve for x
    x = 339,261,819,772,495.12/21,320,392
  6. Step 6: Final answer
    x = 15,912,550.75

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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.