Home / 55,135,628.20-82,703,442.30-54,285,322.60

Finding the Fourth Proportional to 55,135,628.20, 82,703,442.30 and 54,285,322.60

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Solution

The fourth proportional to 55,135,628.20, 82,703,442.30 and 54,285,322.60 is: 81,427,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135,628.20 : 82,703,442.30 = 54,285,322.60 : x
  2. Step 2: Convert to fraction form
    55,135,628.20/82,703,442.30 = 54,285,322.60/x
  3. Step 3: Cross multiply
    55,135,628.20x = 82,703,442.30 × 54,285,322.60
  4. Step 4: Simplify right side
    55,135,628.20x = 4,489,583,045,385,986
  5. Step 5: Solve for x
    x = 4,489,583,045,385,986/55,135,628.20
  6. Step 6: Final answer
    x = 81,427,983.90

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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.