Home / 18,921,945.20-28,389,504.64-5,970,095.60

Finding the Fourth Proportional to 18,921,945.20, 28,389,504.64 and 5,970,095.60

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Solution

The fourth proportional to 18,921,945.20, 28,389,504.64 and 5,970,095.60 is: 8,957,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921,945.20 : 28,389,504.64 = 5,970,095.60 : x
  2. Step 2: Convert to fraction form
    18,921,945.20/28,389,504.64 = 5,970,095.60/x
  3. Step 3: Cross multiply
    18,921,945.20x = 28,389,504.64 × 5,970,095.60
  4. Step 4: Simplify right side
    18,921,945.20x = 169,488,056,737,443.56
  5. Step 5: Solve for x
    x = 169,488,056,737,443.56/18,921,945.20
  6. Step 6: Final answer
    x = 8,957,221.63

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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.