Home / 492,815,266.80-739,174,859.10-129,309,622.80

Finding the Fourth Proportional to 492,815,266.80, 739,174,859.10 and 129,309,622.80

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Solution

The fourth proportional to 492,815,266.80, 739,174,859.10 and 129,309,622.80 is: 193,951,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,815,266.80 : 739,174,859.10 = 129,309,622.80 : x
  2. Step 2: Convert to fraction form
    492,815,266.80/739,174,859.10 = 129,309,622.80/x
  3. Step 3: Cross multiply
    492,815,266.80x = 739,174,859.10 × 129,309,622.80
  4. Step 4: Simplify right side
    492,815,266.80x = 95,582,422,213,464,144
  5. Step 5: Solve for x
    x = 95,582,422,213,464,144/492,815,266.80
  6. Step 6: Final answer
    x = 193,951,828.71

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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.