Home / 492,815,308.80-739,174,922.10-129,309,664.80

Finding the Fourth Proportional to 492,815,308.80, 739,174,922.10 and 129,309,664.80

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Solution

The fourth proportional to 492,815,308.80, 739,174,922.10 and 129,309,664.80 is: 193,951,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,815,308.80 : 739,174,922.10 = 129,309,664.80 : x
  2. Step 2: Convert to fraction form
    492,815,308.80/739,174,922.10 = 129,309,664.80/x
  3. Step 3: Cross multiply
    492,815,308.80x = 739,174,922.10 × 129,309,664.80
  4. Step 4: Simplify right side
    492,815,308.80x = 95,582,461,405,317,120
  5. Step 5: Solve for x
    x = 95,582,461,405,317,120/492,815,308.80
  6. Step 6: Final answer
    x = 193,951,891.71

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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.