Home / 12,584,069-18,876,172.62-3,128,453

Finding the Fourth Proportional to 12,584,069, 18,876,172.62 and 3,128,453

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Solution

The fourth proportional to 12,584,069, 18,876,172.62 and 3,128,453 is: 4,692,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584,069 : 18,876,172.62 = 3,128,453 : x
  2. Step 2: Convert to fraction form
    12,584,069/18,876,172.62 = 3,128,453/x
  3. Step 3: Cross multiply
    12,584,069x = 18,876,172.62 × 3,128,453
  4. Step 4: Simplify right side
    12,584,069x = 59,053,218,861,556.86
  5. Step 5: Solve for x
    x = 59,053,218,861,556.86/12,584,069
  6. Step 6: Final answer
    x = 4,692,696.68

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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.