Home / 13,923,997.28-20,890,272-6,646,743.20

Finding the Fourth Proportional to 13,923,997.28, 20,890,272 and 6,646,743.20

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Solution

The fourth proportional to 13,923,997.28, 20,890,272 and 6,646,743.20 is: 9,972,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923,997.28 : 20,890,272 = 6,646,743.20 : x
  2. Step 2: Convert to fraction form
    13,923,997.28/20,890,272 = 6,646,743.20/x
  3. Step 3: Cross multiply
    13,923,997.28x = 20,890,272 × 6,646,743.20
  4. Step 4: Simplify right side
    13,923,997.28x = 138,852,273,362,150.41
  5. Step 5: Solve for x
    x = 138,852,273,362,150.41/13,923,997.28
  6. Step 6: Final answer
    x = 9,972,156.02

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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.