Home / 20,512,295.72-28,307,053.38-11,093,086.70

Finding the Fourth Proportional to 20,512,295.72, 28,307,053.38 and 11,093,086.70

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Solution

The fourth proportional to 20,512,295.72, 28,307,053.38 and 11,093,086.70 is: 15,308,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,295.72 : 28,307,053.38 = 11,093,086.70 : x
  2. Step 2: Convert to fraction form
    20,512,295.72/28,307,053.38 = 11,093,086.70/x
  3. Step 3: Cross multiply
    20,512,295.72x = 28,307,053.38 × 11,093,086.70
  4. Step 4: Simplify right side
    20,512,295.72x = 314,012,597,365,868
  5. Step 5: Solve for x
    x = 314,012,597,365,868/20,512,295.72
  6. Step 6: Final answer
    x = 15,308,505.77

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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.