Home / 20,913,451.32-28,848,910.68-19,433,838.90

Finding the Fourth Proportional to 20,913,451.32, 28,848,910.68 and 19,433,838.90

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Solution

The fourth proportional to 20,913,451.32, 28,848,910.68 and 19,433,838.90 is: 26,807,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913,451.32 : 28,848,910.68 = 19,433,838.90 : x
  2. Step 2: Convert to fraction form
    20,913,451.32/28,848,910.68 = 19,433,838.90/x
  3. Step 3: Cross multiply
    20,913,451.32x = 28,848,910.68 × 19,433,838.90
  4. Step 4: Simplify right side
    20,913,451.32x = 560,645,082,595,609.38
  5. Step 5: Solve for x
    x = 560,645,082,595,609.38/20,913,451.32
  6. Step 6: Final answer
    x = 26,807,869.92

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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.