Home / 20,830,227.68-28,739,496.12-13,476,415.88

Finding the Fourth Proportional to 20,830,227.68, 28,739,496.12 and 13,476,415.88

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Solution

The fourth proportional to 20,830,227.68, 28,739,496.12 and 13,476,415.88 is: 18,593,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,227.68 : 28,739,496.12 = 13,476,415.88 : x
  2. Step 2: Convert to fraction form
    20,830,227.68/28,739,496.12 = 13,476,415.88/x
  3. Step 3: Cross multiply
    20,830,227.68x = 28,739,496.12 × 13,476,415.88
  4. Step 4: Simplify right side
    20,830,227.68x = 387,305,401,894,766.44
  5. Step 5: Solve for x
    x = 387,305,401,894,766.44/20,830,227.68
  6. Step 6: Final answer
    x = 18,593,431.04

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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.