Home / 15,450,149.51-21,321,229.68-8,385,745.29

Finding the Fourth Proportional to 15,450,149.51, 21,321,229.68 and 8,385,745.29

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Solution

The fourth proportional to 15,450,149.51, 21,321,229.68 and 8,385,745.29 is: 11,572,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450,149.51 : 21,321,229.68 = 8,385,745.29 : x
  2. Step 2: Convert to fraction form
    15,450,149.51/21,321,229.68 = 8,385,745.29/x
  3. Step 3: Cross multiply
    15,450,149.51x = 21,321,229.68 × 8,385,745.29
  4. Step 4: Simplify right side
    15,450,149.51x = 178,794,401,320,934.88
  5. Step 5: Solve for x
    x = 178,794,401,320,934.88/15,450,149.51
  6. Step 6: Final answer
    x = 11,572,341.17

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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.