Home / 78,066,413.75-107,780,619.60-50,237,474.67

Finding the Fourth Proportional to 78,066,413.75, 107,780,619.60 and 50,237,474.67

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Solution

The fourth proportional to 78,066,413.75, 107,780,619.60 and 50,237,474.67 is: 69,359,227.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066,413.75 : 107,780,619.60 = 50,237,474.67 : x
  2. Step 2: Convert to fraction form
    78,066,413.75/107,780,619.60 = 50,237,474.67/x
  3. Step 3: Cross multiply
    78,066,413.75x = 107,780,619.60 × 50,237,474.67
  4. Step 4: Simplify right side
    78,066,413.75x = 5,414,626,147,071,905
  5. Step 5: Solve for x
    x = 5,414,626,147,071,905/78,066,413.75
  6. Step 6: Final answer
    x = 69,359,227.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.