Home / 7,128,238.20-10,692,766.90-2,080,327.80

Finding the Fourth Proportional to 7,128,238.20, 10,692,766.90 and 2,080,327.80

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Solution

The fourth proportional to 7,128,238.20, 10,692,766.90 and 2,080,327.80 is: 3,120,611.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,238.20 : 10,692,766.90 = 2,080,327.80 : x
  2. Step 2: Convert to fraction form
    7,128,238.20/10,692,766.90 = 2,080,327.80/x
  3. Step 3: Cross multiply
    7,128,238.20x = 10,692,766.90 × 2,080,327.80
  4. Step 4: Simplify right side
    7,128,238.20x = 22,244,460,240,989.82
  5. Step 5: Solve for x
    x = 22,244,460,240,989.82/7,128,238.20
  6. Step 6: Final answer
    x = 3,120,611.24

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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.