Home / 8,869,857.90-13,304,786.85-7,972,313.10

Finding the Fourth Proportional to 8,869,857.90, 13,304,786.85 and 7,972,313.10

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Solution

The fourth proportional to 8,869,857.90, 13,304,786.85 and 7,972,313.10 is: 11,958,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,857.90 : 13,304,786.85 = 7,972,313.10 : x
  2. Step 2: Convert to fraction form
    8,869,857.90/13,304,786.85 = 7,972,313.10/x
  3. Step 3: Cross multiply
    8,869,857.90x = 13,304,786.85 × 7,972,313.10
  4. Step 4: Simplify right side
    8,869,857.90x = 106,069,926,496,962.73
  5. Step 5: Solve for x
    x = 106,069,926,496,962.73/8,869,857.90
  6. Step 6: Final answer
    x = 11,958,469.65

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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.