Home / 20,982,341.21-28,954,951.82-12,042,922.82

Finding the Fourth Proportional to 20,982,341.21, 28,954,951.82 and 12,042,922.82

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Solution

The fourth proportional to 20,982,341.21, 28,954,951.82 and 12,042,922.82 is: 16,618,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982,341.21 : 28,954,951.82 = 12,042,922.82 : x
  2. Step 2: Convert to fraction form
    20,982,341.21/28,954,951.82 = 12,042,922.82/x
  3. Step 3: Cross multiply
    20,982,341.21x = 28,954,951.82 × 12,042,922.82
  4. Step 4: Simplify right side
    20,982,341.21x = 348,702,249,910,411.06
  5. Step 5: Solve for x
    x = 348,702,249,910,411.06/20,982,341.21
  6. Step 6: Final answer
    x = 16,618,843.74

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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.