Home / 21,517,717.52-29,694,188.89-11,728,131.43

Finding the Fourth Proportional to 21,517,717.52, 29,694,188.89 and 11,728,131.43

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Solution

The fourth proportional to 21,517,717.52, 29,694,188.89 and 11,728,131.43 is: 16,184,678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517,717.52 : 29,694,188.89 = 11,728,131.43 : x
  2. Step 2: Convert to fraction form
    21,517,717.52/29,694,188.89 = 11,728,131.43/x
  3. Step 3: Cross multiply
    21,517,717.52x = 29,694,188.89 × 11,728,131.43
  4. Step 4: Simplify right side
    21,517,717.52x = 348,257,350,009,165.81
  5. Step 5: Solve for x
    x = 348,257,350,009,165.81/21,517,717.52
  6. Step 6: Final answer
    x = 16,184,678.96

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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.