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Finding the Fourth Proportional to 71,041,517.90, 106,562,280.90 and 17,188,829.90

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Solution

The fourth proportional to 71,041,517.90, 106,562,280.90 and 17,188,829.90 is: 25,783,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,041,517.90 : 106,562,280.90 = 17,188,829.90 : x
  2. Step 2: Convert to fraction form
    71,041,517.90/106,562,280.90 = 17,188,829.90/x
  3. Step 3: Cross multiply
    71,041,517.90x = 106,562,280.90 × 17,188,829.90
  4. Step 4: Simplify right side
    71,041,517.90x = 1,831,680,920,146,118.75
  5. Step 5: Solve for x
    x = 1,831,680,920,146,118.75/71,041,517.90
  6. Step 6: Final answer
    x = 25,783,245.83

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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.