Home / 20,212,910.40-30,319,365.60-8,076,372.60

Finding the Fourth Proportional to 20,212,910.40, 30,319,365.60 and 8,076,372.60

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Solution

The fourth proportional to 20,212,910.40, 30,319,365.60 and 8,076,372.60 is: 12,114,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,910.40 : 30,319,365.60 = 8,076,372.60 : x
  2. Step 2: Convert to fraction form
    20,212,910.40/30,319,365.60 = 8,076,372.60/x
  3. Step 3: Cross multiply
    20,212,910.40x = 30,319,365.60 × 8,076,372.60
  4. Step 4: Simplify right side
    20,212,910.40x = 244,870,493,581,222.56
  5. Step 5: Solve for x
    x = 244,870,493,581,222.56/20,212,910.40
  6. Step 6: Final answer
    x = 12,114,558.90

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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.