Home / 20,644,028.60-28,489,227.78-11,352,114.86

Finding the Fourth Proportional to 20,644,028.60, 28,489,227.78 and 11,352,114.86

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Solution

The fourth proportional to 20,644,028.60, 28,489,227.78 and 11,352,114.86 is: 15,666,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,028.60 : 28,489,227.78 = 11,352,114.86 : x
  2. Step 2: Convert to fraction form
    20,644,028.60/28,489,227.78 = 11,352,114.86/x
  3. Step 3: Cross multiply
    20,644,028.60x = 28,489,227.78 × 11,352,114.86
  4. Step 4: Simplify right side
    20,644,028.60x = 323,412,985,888,816.69
  5. Step 5: Solve for x
    x = 323,412,985,888,816.69/20,644,028.60
  6. Step 6: Final answer
    x = 15,666,176.03

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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.