Home / 13,905,907.40-20,858,861.10-12,562,214.60

Finding the Fourth Proportional to 13,905,907.40, 20,858,861.10 and 12,562,214.60

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Solution

The fourth proportional to 13,905,907.40, 20,858,861.10 and 12,562,214.60 is: 18,843,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905,907.40 : 20,858,861.10 = 12,562,214.60 : x
  2. Step 2: Convert to fraction form
    13,905,907.40/20,858,861.10 = 12,562,214.60/x
  3. Step 3: Cross multiply
    13,905,907.40x = 20,858,861.10 × 12,562,214.60
  4. Step 4: Simplify right side
    13,905,907.40x = 262,033,489,449,792.06
  5. Step 5: Solve for x
    x = 262,033,489,449,792.06/13,905,907.40
  6. Step 6: Final answer
    x = 18,843,321.90

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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.