Home / 930,978,413.85-1,396,611,109.85-317,419,150.53

Finding the Fourth Proportional to 930,978,413.85, 1,396,611,109.85 and 317,419,150.53

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Solution

The fourth proportional to 930,978,413.85, 1,396,611,109.85 and 317,419,150.53 is: 476,177,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,978,413.85 : 1,396,611,109.85 = 317,419,150.53 : x
  2. Step 2: Convert to fraction form
    930,978,413.85/1,396,611,109.85 = 317,419,150.53/x
  3. Step 3: Cross multiply
    930,978,413.85x = 1,396,611,109.85 × 317,419,150.53
  4. Step 4: Simplify right side
    930,978,413.85x = 443,311,112,111,886,784
  5. Step 5: Solve for x
    x = 443,311,112,111,886,784/930,978,413.85
  6. Step 6: Final answer
    x = 476,177,648.71

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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.