Home / 20,923,274.20-31,372,073.58-8,128,843.06

Finding the Fourth Proportional to 20,923,274.20, 31,372,073.58 and 8,128,843.06

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Solution

The fourth proportional to 20,923,274.20, 31,372,073.58 and 8,128,843.06 is: 12,188,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923,274.20 : 31,372,073.58 = 8,128,843.06 : x
  2. Step 2: Convert to fraction form
    20,923,274.20/31,372,073.58 = 8,128,843.06/x
  3. Step 3: Cross multiply
    20,923,274.20x = 31,372,073.58 × 8,128,843.06
  4. Step 4: Simplify right side
    20,923,274.20x = 255,018,662,598,592.31
  5. Step 5: Solve for x
    x = 255,018,662,598,592.31/20,923,274.20
  6. Step 6: Final answer
    x = 12,188,277.04

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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.