Home / 21,320,777.64-29,422,672.84-11,531,222.68

Finding the Fourth Proportional to 21,320,777.64, 29,422,672.84 and 11,531,222.68

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Solution

The fourth proportional to 21,320,777.64, 29,422,672.84 and 11,531,222.68 is: 15,913,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,777.64 : 29,422,672.84 = 11,531,222.68 : x
  2. Step 2: Convert to fraction form
    21,320,777.64/29,422,672.84 = 11,531,222.68/x
  3. Step 3: Cross multiply
    21,320,777.64x = 29,422,672.84 × 11,531,222.68
  4. Step 4: Simplify right side
    21,320,777.64x = 339,279,392,358,828
  5. Step 5: Solve for x
    x = 339,279,392,358,828/21,320,777.64
  6. Step 6: Final answer
    x = 15,913,087.13

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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.