Home / 20,778,190.62-28,673,354.07-11,610,908.70

Finding the Fourth Proportional to 20,778,190.62, 28,673,354.07 and 11,610,908.70

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Solution

The fourth proportional to 20,778,190.62, 28,673,354.07 and 11,610,908.70 is: 16,022,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,190.62 : 28,673,354.07 = 11,610,908.70 : x
  2. Step 2: Convert to fraction form
    20,778,190.62/28,673,354.07 = 11,610,908.70/x
  3. Step 3: Cross multiply
    20,778,190.62x = 28,673,354.07 × 11,610,908.70
  4. Step 4: Simplify right side
    20,778,190.62x = 332,923,696,229,543.38
  5. Step 5: Solve for x
    x = 332,923,696,229,543.38/20,778,190.62
  6. Step 6: Final answer
    x = 16,022,747.23

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1.5x scale

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.