Home / 4,128,272.20-6,192,408.30-3,120,502.60

Finding the Fourth Proportional to 4,128,272.20, 6,192,408.30 and 3,120,502.60

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Solution

The fourth proportional to 4,128,272.20, 6,192,408.30 and 3,120,502.60 is: 4,680,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128,272.20 : 6,192,408.30 = 3,120,502.60 : x
  2. Step 2: Convert to fraction form
    4,128,272.20/6,192,408.30 = 3,120,502.60/x
  3. Step 3: Cross multiply
    4,128,272.20x = 6,192,408.30 × 3,120,502.60
  4. Step 4: Simplify right side
    4,128,272.20x = 19,323,426,200,411.58
  5. Step 5: Solve for x
    x = 19,323,426,200,411.58/4,128,272.20
  6. Step 6: Final answer
    x = 4,680,753.90

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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.