Home / 20,800,358.72-28,703,444.73-11,380,945.85

Finding the Fourth Proportional to 20,800,358.72, 28,703,444.73 and 11,380,945.85

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Solution

The fourth proportional to 20,800,358.72, 28,703,444.73 and 11,380,945.85 is: 15,705,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,358.72 : 28,703,444.73 = 11,380,945.85 : x
  2. Step 2: Convert to fraction form
    20,800,358.72/28,703,444.73 = 11,380,945.85/x
  3. Step 3: Cross multiply
    20,800,358.72x = 28,703,444.73 × 11,380,945.85
  4. Step 4: Simplify right side
    20,800,358.72x = 326,672,350,295,511.50
  5. Step 5: Solve for x
    x = 326,672,350,295,511.50/20,800,358.72
  6. Step 6: Final answer
    x = 15,705,130.60

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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.