Home / 20,830,229.68-28,739,498.88-13,476,417.88

Finding the Fourth Proportional to 20,830,229.68, 28,739,498.88 and 13,476,417.88

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Solution

The fourth proportional to 20,830,229.68, 28,739,498.88 and 13,476,417.88 is: 18,593,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,229.68 : 28,739,498.88 = 13,476,417.88 : x
  2. Step 2: Convert to fraction form
    20,830,229.68/28,739,498.88 = 13,476,417.88/x
  3. Step 3: Cross multiply
    20,830,229.68x = 28,739,498.88 × 13,476,417.88
  4. Step 4: Simplify right side
    20,830,229.68x = 387,305,496,568,672
  5. Step 5: Solve for x
    x = 387,305,496,568,672/20,830,229.68
  6. Step 6: Final answer
    x = 18,593,433.80

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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.