Home / 20,383,175.54-28,127,938.91-11,090,783.86

Finding the Fourth Proportional to 20,383,175.54, 28,127,938.91 and 11,090,783.86

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Solution

The fourth proportional to 20,383,175.54, 28,127,938.91 and 11,090,783.86 is: 15,304,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,175.54 : 28,127,938.91 = 11,090,783.86 : x
  2. Step 2: Convert to fraction form
    20,383,175.54/28,127,938.91 = 11,090,783.86/x
  3. Step 3: Cross multiply
    20,383,175.54x = 28,127,938.91 × 11,090,783.86
  4. Step 4: Simplify right side
    20,383,175.54x = 311,960,890,752,320.25
  5. Step 5: Solve for x
    x = 311,960,890,752,320.25/20,383,175.54
  6. Step 6: Final answer
    x = 15,304,822.85

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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.