Home / 20,335,942.92-28,063,492.68-11,043,431.76

Finding the Fourth Proportional to 20,335,942.92, 28,063,492.68 and 11,043,431.76

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Solution

The fourth proportional to 20,335,942.92, 28,063,492.68 and 11,043,431.76 is: 15,239,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335,942.92 : 28,063,492.68 = 11,043,431.76 : x
  2. Step 2: Convert to fraction form
    20,335,942.92/28,063,492.68 = 11,043,431.76/x
  3. Step 3: Cross multiply
    20,335,942.92x = 28,063,492.68 × 11,043,431.76
  4. Step 4: Simplify right side
    20,335,942.92x = 309,917,266,358,839.50
  5. Step 5: Solve for x
    x = 309,917,266,358,839.50/20,335,942.92
  6. Step 6: Final answer
    x = 15,239,876.88

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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.