Home / 20,912,401.02-28,855,982.79-11,743,272.30

Finding the Fourth Proportional to 20,912,401.02, 28,855,982.79 and 11,743,272.30

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Solution

The fourth proportional to 20,912,401.02, 28,855,982.79 and 11,743,272.30 is: 16,203,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,401.02 : 28,855,982.79 = 11,743,272.30 : x
  2. Step 2: Convert to fraction form
    20,912,401.02/28,855,982.79 = 11,743,272.30/x
  3. Step 3: Cross multiply
    20,912,401.02x = 28,855,982.79 × 11,743,272.30
  4. Step 4: Simplify right side
    20,912,401.02x = 338,863,663,387,083.75
  5. Step 5: Solve for x
    x = 338,863,663,387,083.75/20,912,401.02
  6. Step 6: Final answer
    x = 16,203,957.79

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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.