Home / 13,475,138.10-20,212,707.15-3,890,829.30

Finding the Fourth Proportional to 13,475,138.10, 20,212,707.15 and 3,890,829.30

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Solution

The fourth proportional to 13,475,138.10, 20,212,707.15 and 3,890,829.30 is: 5,836,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,138.10 : 20,212,707.15 = 3,890,829.30 : x
  2. Step 2: Convert to fraction form
    13,475,138.10/20,212,707.15 = 3,890,829.30/x
  3. Step 3: Cross multiply
    13,475,138.10x = 20,212,707.15 × 3,890,829.30
  4. Step 4: Simplify right side
    13,475,138.10x = 78,644,193,211,539.48
  5. Step 5: Solve for x
    x = 78,644,193,211,539.48/13,475,138.10
  6. Step 6: Final answer
    x = 5,836,243.95

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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.