Home / 20,213,354.80-30,320,032.20-7,431,214.60

Finding the Fourth Proportional to 20,213,354.80, 30,320,032.20 and 7,431,214.60

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Solution

The fourth proportional to 20,213,354.80, 30,320,032.20 and 7,431,214.60 is: 11,146,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,354.80 : 30,320,032.20 = 7,431,214.60 : x
  2. Step 2: Convert to fraction form
    20,213,354.80/30,320,032.20 = 7,431,214.60/x
  3. Step 3: Cross multiply
    20,213,354.80x = 30,320,032.20 × 7,431,214.60
  4. Step 4: Simplify right side
    20,213,354.80x = 225,314,665,957,110.09
  5. Step 5: Solve for x
    x = 225,314,665,957,110.09/20,213,354.80
  6. Step 6: Final answer
    x = 11,146,821.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.