Home / 20,383,192.80-28,127,962.68-11,090,801.12

Finding the Fourth Proportional to 20,383,192.80, 28,127,962.68 and 11,090,801.12

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Solution

The fourth proportional to 20,383,192.80, 28,127,962.68 and 11,090,801.12 is: 15,304,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,192.80 : 28,127,962.68 = 11,090,801.12 : x
  2. Step 2: Convert to fraction form
    20,383,192.80/28,127,962.68 = 11,090,801.12/x
  3. Step 3: Cross multiply
    20,383,192.80x = 28,127,962.68 × 11,090,801.12
  4. Step 4: Simplify right side
    20,383,192.80x = 311,961,639,994,662.19
  5. Step 5: Solve for x
    x = 311,961,639,994,662.19/20,383,192.80
  6. Step 6: Final answer
    x = 15,304,846.65

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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.