Home / 419,328,017.20-628,992,025.80-296,884,010.80

Finding the Fourth Proportional to 419,328,017.20, 628,992,025.80 and 296,884,010.80

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Solution

The fourth proportional to 419,328,017.20, 628,992,025.80 and 296,884,010.80 is: 445,326,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,328,017.20 : 628,992,025.80 = 296,884,010.80 : x
  2. Step 2: Convert to fraction form
    419,328,017.20/628,992,025.80 = 296,884,010.80/x
  3. Step 3: Cross multiply
    419,328,017.20x = 628,992,025.80 × 296,884,010.80
  4. Step 4: Simplify right side
    419,328,017.20x = 186,737,675,380,721,056
  5. Step 5: Solve for x
    x = 186,737,675,380,721,056/419,328,017.20
  6. Step 6: Final answer
    x = 445,326,016.20

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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.