Home / 20,845,009.75-28,766,116.19-11,553,179.70

Finding the Fourth Proportional to 20,845,009.75, 28,766,116.19 and 11,553,179.70

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Solution

The fourth proportional to 20,845,009.75, 28,766,116.19 and 11,553,179.70 is: 15,943,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845,009.75 : 28,766,116.19 = 11,553,179.70 : x
  2. Step 2: Convert to fraction form
    20,845,009.75/28,766,116.19 = 11,553,179.70/x
  3. Step 3: Cross multiply
    20,845,009.75x = 28,766,116.19 × 11,553,179.70
  4. Step 4: Simplify right side
    20,845,009.75x = 332,340,109,556,383.44
  5. Step 5: Solve for x
    x = 332,340,109,556,383.44/20,845,009.75
  6. Step 6: Final answer
    x = 15,943,389.50

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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.