Home / 20,415,318.30-28,173,126.42-11,247,960.96

Finding the Fourth Proportional to 20,415,318.30, 28,173,126.42 and 11,247,960.96

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Solution

The fourth proportional to 20,415,318.30, 28,173,126.42 and 11,247,960.96 is: 15,522,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,318.30 : 28,173,126.42 = 11,247,960.96 : x
  2. Step 2: Convert to fraction form
    20,415,318.30/28,173,126.42 = 11,247,960.96/x
  3. Step 3: Cross multiply
    20,415,318.30x = 28,173,126.42 × 11,247,960.96
  4. Step 4: Simplify right side
    20,415,318.30x = 316,890,226,093,304.62
  5. Step 5: Solve for x
    x = 316,890,226,093,304.62/20,415,318.30
  6. Step 6: Final answer
    x = 15,522,179.05

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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.