Home / 823,609,193.85-1,235,412,799.29-210,193,485.21

Finding the Fourth Proportional to 823,609,193.85, 1,235,412,799.29 and 210,193,485.21

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Solution

The fourth proportional to 823,609,193.85, 1,235,412,799.29 and 210,193,485.21 is: 315,289,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,609,193.85 : 1,235,412,799.29 = 210,193,485.21 : x
  2. Step 2: Convert to fraction form
    823,609,193.85/1,235,412,799.29 = 210,193,485.21/x
  3. Step 3: Cross multiply
    823,609,193.85x = 1,235,412,799.29 × 210,193,485.21
  4. Step 4: Simplify right side
    823,609,193.85x = 259,675,721,955,807,328
  5. Step 5: Solve for x
    x = 259,675,721,955,807,328/823,609,193.85
  6. Step 6: Final answer
    x = 315,289,974.78

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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.