Home / 28,179,170.64-42,269,144.76-7,984,393.20

Finding the Fourth Proportional to 28,179,170.64, 42,269,144.76 and 7,984,393.20

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Solution

The fourth proportional to 28,179,170.64, 42,269,144.76 and 7,984,393.20 is: 11,976,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179,170.64 : 42,269,144.76 = 7,984,393.20 : x
  2. Step 2: Convert to fraction form
    28,179,170.64/42,269,144.76 = 7,984,393.20/x
  3. Step 3: Cross multiply
    28,179,170.64x = 42,269,144.76 × 7,984,393.20
  4. Step 4: Simplify right side
    28,179,170.64x = 337,493,471,991,559.62
  5. Step 5: Solve for x
    x = 337,493,471,991,559.62/28,179,170.64
  6. Step 6: Final answer
    x = 11,976,699.96

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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.