Home / 20,821,993.32-28,737,594.23-11,881,121.27

Finding the Fourth Proportional to 20,821,993.32, 28,737,594.23 and 11,881,121.27

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Solution

The fourth proportional to 20,821,993.32, 28,737,594.23 and 11,881,121.27 is: 16,397,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,993.32 : 28,737,594.23 = 11,881,121.27 : x
  2. Step 2: Convert to fraction form
    20,821,993.32/28,737,594.23 = 11,881,121.27/x
  3. Step 3: Cross multiply
    20,821,993.32x = 28,737,594.23 × 11,881,121.27
  4. Step 4: Simplify right side
    20,821,993.32x = 341,434,842,125,232.19
  5. Step 5: Solve for x
    x = 341,434,842,125,232.19/20,821,993.32
  6. Step 6: Final answer
    x = 16,397,798.08

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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.