Home / 21,691,019.79-29,933,664.16-11,767,901.96

Finding the Fourth Proportional to 21,691,019.79, 29,933,664.16 and 11,767,901.96

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Solution

The fourth proportional to 21,691,019.79, 29,933,664.16 and 11,767,901.96 is: 16,239,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691,019.79 : 29,933,664.16 = 11,767,901.96 : x
  2. Step 2: Convert to fraction form
    21,691,019.79/29,933,664.16 = 11,767,901.96/x
  3. Step 3: Cross multiply
    21,691,019.79x = 29,933,664.16 × 11,767,901.96
  4. Step 4: Simplify right side
    21,691,019.79x = 352,256,425,183,860.12
  5. Step 5: Solve for x
    x = 352,256,425,183,860.12/21,691,019.79
  6. Step 6: Final answer
    x = 16,239,735.55

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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.