Home / 492,815,315.80-739,174,932.60-129,309,671.80

Finding the Fourth Proportional to 492,815,315.80, 739,174,932.60 and 129,309,671.80

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Solution

The fourth proportional to 492,815,315.80, 739,174,932.60 and 129,309,671.80 is: 193,951,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,815,315.80 : 739,174,932.60 = 129,309,671.80 : x
  2. Step 2: Convert to fraction form
    492,815,315.80/739,174,932.60 = 129,309,671.80/x
  3. Step 3: Cross multiply
    492,815,315.80x = 739,174,932.60 × 129,309,671.80
  4. Step 4: Simplify right side
    492,815,315.80x = 95,582,467,937,293,120
  5. Step 5: Solve for x
    x = 95,582,467,937,293,120/492,815,315.80
  6. Step 6: Final answer
    x = 193,951,902.21

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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.