Home / 18,471,905.31-25,486,999.87-11,028,118.59

Finding the Fourth Proportional to 18,471,905.31, 25,486,999.87 and 11,028,118.59

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Solution

The fourth proportional to 18,471,905.31, 25,486,999.87 and 11,028,118.59 is: 15,216,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471,905.31 : 25,486,999.87 = 11,028,118.59 : x
  2. Step 2: Convert to fraction form
    18,471,905.31/25,486,999.87 = 11,028,118.59/x
  3. Step 3: Cross multiply
    18,471,905.31x = 25,486,999.87 × 11,028,118.59
  4. Step 4: Simplify right side
    18,471,905.31x = 281,073,656,991,112.59
  5. Step 5: Solve for x
    x = 281,073,656,991,112.59/18,471,905.31
  6. Step 6: Final answer
    x = 15,216,278.57

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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.