Home / 18,781,234.31-25,942,415.79-15,531,177.35

Finding the Fourth Proportional to 18,781,234.31, 25,942,415.79 and 15,531,177.35

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Solution

The fourth proportional to 18,781,234.31, 25,942,415.79 and 15,531,177.35 is: 21,453,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,234.31 : 25,942,415.79 = 15,531,177.35 : x
  2. Step 2: Convert to fraction form
    18,781,234.31/25,942,415.79 = 15,531,177.35/x
  3. Step 3: Cross multiply
    18,781,234.31x = 25,942,415.79 × 15,531,177.35
  4. Step 4: Simplify right side
    18,781,234.31x = 402,916,260,392,218.25
  5. Step 5: Solve for x
    x = 402,916,260,392,218.25/18,781,234.31
  6. Step 6: Final answer
    x = 21,453,129.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.