Home / 20,238,462.46-27,929,114.94-11,071,105.21

Finding the Fourth Proportional to 20,238,462.46, 27,929,114.94 and 11,071,105.21

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Solution

The fourth proportional to 20,238,462.46, 27,929,114.94 and 11,071,105.21 is: 15,278,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,462.46 : 27,929,114.94 = 11,071,105.21 : x
  2. Step 2: Convert to fraction form
    20,238,462.46/27,929,114.94 = 11,071,105.21/x
  3. Step 3: Cross multiply
    20,238,462.46x = 27,929,114.94 × 11,071,105.21
  4. Step 4: Simplify right side
    20,238,462.46x = 309,206,169,937,075.88
  5. Step 5: Solve for x
    x = 309,206,169,937,075.88/20,238,462.46
  6. Step 6: Final answer
    x = 15,278,145.29

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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.