Home / 20,419,487.64-28,179,081.90-11,252,458.44

Finding the Fourth Proportional to 20,419,487.64, 28,179,081.90 and 11,252,458.44

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Solution

The fourth proportional to 20,419,487.64, 28,179,081.90 and 11,252,458.44 is: 15,528,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419,487.64 : 28,179,081.90 = 11,252,458.44 : x
  2. Step 2: Convert to fraction form
    20,419,487.64/28,179,081.90 = 11,252,458.44/x
  3. Step 3: Cross multiply
    20,419,487.64x = 28,179,081.90 × 11,252,458.44
  4. Step 4: Simplify right side
    20,419,487.64x = 317,083,947,957,106.19
  5. Step 5: Solve for x
    x = 317,083,947,957,106.19/20,419,487.64
  6. Step 6: Final answer
    x = 15,528,496.77

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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.