Home / 7,659,413.92-11,489,086.32-1,979,155.36

Finding the Fourth Proportional to 7,659,413.92, 11,489,086.32 and 1,979,155.36

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Solution

The fourth proportional to 7,659,413.92, 11,489,086.32 and 1,979,155.36 is: 2,968,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659,413.92 : 11,489,086.32 = 1,979,155.36 : x
  2. Step 2: Convert to fraction form
    7,659,413.92/11,489,086.32 = 1,979,155.36/x
  3. Step 3: Cross multiply
    7,659,413.92x = 11,489,086.32 × 1,979,155.36
  4. Step 4: Simplify right side
    7,659,413.92x = 22,738,686,771,730.68
  5. Step 5: Solve for x
    x = 22,738,686,771,730.68/7,659,413.92
  6. Step 6: Final answer
    x = 2,968,724.11

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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.