Home / 20,885,377.20-28,823,644.38-12,186,352.32

Finding the Fourth Proportional to 20,885,377.20, 28,823,644.38 and 12,186,352.32

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Solution

The fourth proportional to 20,885,377.20, 28,823,644.38 and 12,186,352.32 is: 16,818,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,377.20 : 28,823,644.38 = 12,186,352.32 : x
  2. Step 2: Convert to fraction form
    20,885,377.20/28,823,644.38 = 12,186,352.32/x
  3. Step 3: Cross multiply
    20,885,377.20x = 28,823,644.38 × 12,186,352.32
  4. Step 4: Simplify right side
    20,885,377.20x = 351,255,085,561,067.94
  5. Step 5: Solve for x
    x = 351,255,085,561,067.94/20,885,377.20
  6. Step 6: Final answer
    x = 16,818,230.39

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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.