Home / 21,643,972.11-29,868,710.49-11,720,872.11

Finding the Fourth Proportional to 21,643,972.11, 29,868,710.49 and 11,720,872.11

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Solution

The fourth proportional to 21,643,972.11, 29,868,710.49 and 11,720,872.11 is: 16,174,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,972.11 : 29,868,710.49 = 11,720,872.11 : x
  2. Step 2: Convert to fraction form
    21,643,972.11/29,868,710.49 = 11,720,872.11/x
  3. Step 3: Cross multiply
    21,643,972.11x = 29,868,710.49 × 11,720,872.11
  4. Step 4: Simplify right side
    21,643,972.11x = 350,087,335,743,905.38
  5. Step 5: Solve for x
    x = 350,087,335,743,905.38/21,643,972.11
  6. Step 6: Final answer
    x = 16,174,819.20

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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.