Home / 18,697,438.85-25,801,787.86-11,731,871.18

Finding the Fourth Proportional to 18,697,438.85, 25,801,787.86 and 11,731,871.18

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Solution

The fourth proportional to 18,697,438.85, 25,801,787.86 and 11,731,871.18 is: 16,189,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,438.85 : 25,801,787.86 = 11,731,871.18 : x
  2. Step 2: Convert to fraction form
    18,697,438.85/25,801,787.86 = 11,731,871.18/x
  3. Step 3: Cross multiply
    18,697,438.85x = 25,801,787.86 × 11,731,871.18
  4. Step 4: Simplify right side
    18,697,438.85x = 302,703,251,422,382.69
  5. Step 5: Solve for x
    x = 302,703,251,422,382.69/18,697,438.85
  6. Step 6: Final answer
    x = 16,189,556.97

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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.