Home / 21,384,517.60-32,078,005.20-6,240,786.40

Finding the Fourth Proportional to 21,384,517.60, 32,078,005.20 and 6,240,786.40

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Solution

The fourth proportional to 21,384,517.60, 32,078,005.20 and 6,240,786.40 is: 9,361,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,517.60 : 32,078,005.20 = 6,240,786.40 : x
  2. Step 2: Convert to fraction form
    21,384,517.60/32,078,005.20 = 6,240,786.40/x
  3. Step 3: Cross multiply
    21,384,517.60x = 32,078,005.20 × 6,240,786.40
  4. Step 4: Simplify right side
    21,384,517.60x = 200,191,978,591,289.28
  5. Step 5: Solve for x
    x = 200,191,978,591,289.28/21,384,517.60
  6. Step 6: Final answer
    x = 9,361,538.21

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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.