Home / 13,813,305.45-20,680,100.10-12,218,982.45

Finding the Fourth Proportional to 13,813,305.45, 20,680,100.10 and 12,218,982.45

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Solution

The fourth proportional to 13,813,305.45, 20,680,100.10 and 12,218,982.45 is: 18,293,215.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813,305.45 : 20,680,100.10 = 12,218,982.45 : x
  2. Step 2: Convert to fraction form
    13,813,305.45/20,680,100.10 = 12,218,982.45/x
  3. Step 3: Cross multiply
    13,813,305.45x = 20,680,100.10 × 12,218,982.45
  4. Step 4: Simplify right side
    13,813,305.45x = 252,689,780,186,143.25
  5. Step 5: Solve for x
    x = 252,689,780,186,143.25/13,813,305.45
  6. Step 6: Final answer
    x = 18,293,215.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.