Home / 20,743,221.40-31,114,832.10-5,597,128.60

Finding the Fourth Proportional to 20,743,221.40, 31,114,832.10 and 5,597,128.60

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Solution

The fourth proportional to 20,743,221.40, 31,114,832.10 and 5,597,128.60 is: 8,395,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,221.40 : 31,114,832.10 = 5,597,128.60 : x
  2. Step 2: Convert to fraction form
    20,743,221.40/31,114,832.10 = 5,597,128.60/x
  3. Step 3: Cross multiply
    20,743,221.40x = 31,114,832.10 × 5,597,128.60
  4. Step 4: Simplify right side
    20,743,221.40x = 174,153,716,631,108.06
  5. Step 5: Solve for x
    x = 174,153,716,631,108.06/20,743,221.40
  6. Step 6: Final answer
    x = 8,395,692.90

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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.