Home / 28,043,149.44-38,699,922.24-15,819,968.64

Finding the Fourth Proportional to 28,043,149.44, 38,699,922.24 and 15,819,968.64

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Solution

The fourth proportional to 28,043,149.44, 38,699,922.24 and 15,819,968.64 is: 21,831,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043,149.44 : 38,699,922.24 = 15,819,968.64 : x
  2. Step 2: Convert to fraction form
    28,043,149.44/38,699,922.24 = 15,819,968.64/x
  3. Step 3: Cross multiply
    28,043,149.44x = 38,699,922.24 × 15,819,968.64
  4. Step 4: Simplify right side
    28,043,149.44x = 612,231,556,207,238.62
  5. Step 5: Solve for x
    x = 612,231,556,207,238.62/28,043,149.44
  6. Step 6: Final answer
    x = 21,831,768.84

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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.