Home / 20,886,610.20-28,823,605.02-11,718,654.36

Finding the Fourth Proportional to 20,886,610.20, 28,823,605.02 and 11,718,654.36

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Solution

The fourth proportional to 20,886,610.20, 28,823,605.02 and 11,718,654.36 is: 16,171,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886,610.20 : 28,823,605.02 = 11,718,654.36 : x
  2. Step 2: Convert to fraction form
    20,886,610.20/28,823,605.02 = 11,718,654.36/x
  3. Step 3: Cross multiply
    20,886,610.20x = 28,823,605.02 × 11,718,654.36
  4. Step 4: Simplify right side
    20,886,610.20x = 337,773,864,638,540.88
  5. Step 5: Solve for x
    x = 337,773,864,638,540.88/20,886,610.20
  6. Step 6: Final answer
    x = 16,171,789.55

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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.