Home / 19,561,972.32-29,304,786.96-12,809,916

Finding the Fourth Proportional to 19,561,972.32, 29,304,786.96 and 12,809,916

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Solution

The fourth proportional to 19,561,972.32, 29,304,786.96 and 12,809,916 is: 19,189,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561,972.32 : 29,304,786.96 = 12,809,916 : x
  2. Step 2: Convert to fraction form
    19,561,972.32/29,304,786.96 = 12,809,916/x
  3. Step 3: Cross multiply
    19,561,972.32x = 29,304,786.96 × 12,809,916
  4. Step 4: Simplify right side
    19,561,972.32x = 375,391,859,355,495.38
  5. Step 5: Solve for x
    x = 375,391,859,355,495.38/19,561,972.32
  6. Step 6: Final answer
    x = 19,189,877.85

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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.