Home / 20,856,868.32-28,782,042.48-11,437,523.04

Finding the Fourth Proportional to 20,856,868.32, 28,782,042.48 and 11,437,523.04

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Solution

The fourth proportional to 20,856,868.32, 28,782,042.48 and 11,437,523.04 is: 15,783,542.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,868.32 : 28,782,042.48 = 11,437,523.04 : x
  2. Step 2: Convert to fraction form
    20,856,868.32/28,782,042.48 = 11,437,523.04/x
  3. Step 3: Cross multiply
    20,856,868.32x = 28,782,042.48 × 11,437,523.04
  4. Step 4: Simplify right side
    20,856,868.32x = 329,195,274,003,258.69
  5. Step 5: Solve for x
    x = 329,195,274,003,258.69/20,856,868.32
  6. Step 6: Final answer
    x = 15,783,542.81

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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.