Home / 18,681,853.96-28,023,963.54-7,897,144.60

Finding the Fourth Proportional to 18,681,853.96, 28,023,963.54 and 7,897,144.60

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Solution

The fourth proportional to 18,681,853.96, 28,023,963.54 and 7,897,144.60 is: 11,846,216.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,853.96 : 28,023,963.54 = 7,897,144.60 : x
  2. Step 2: Convert to fraction form
    18,681,853.96/28,023,963.54 = 7,897,144.60/x
  3. Step 3: Cross multiply
    18,681,853.96x = 28,023,963.54 × 7,897,144.60
  4. Step 4: Simplify right side
    18,681,853.96x = 221,309,292,340,507.88
  5. Step 5: Solve for x
    x = 221,309,292,340,507.88/18,681,853.96
  6. Step 6: Final answer
    x = 11,846,216.81

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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.