Home / 7,879,141.20-11,809,963.80-3,085,237.20

Finding the Fourth Proportional to 7,879,141.20, 11,809,963.80 and 3,085,237.20

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Solution

The fourth proportional to 7,879,141.20, 11,809,963.80 and 3,085,237.20 is: 4,624,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879,141.20 : 11,809,963.80 = 3,085,237.20 : x
  2. Step 2: Convert to fraction form
    7,879,141.20/11,809,963.80 = 3,085,237.20/x
  3. Step 3: Cross multiply
    7,879,141.20x = 11,809,963.80 × 3,085,237.20
  4. Step 4: Simplify right side
    7,879,141.20x = 36,436,539,646,413.37
  5. Step 5: Solve for x
    x = 36,436,539,646,413.37/7,879,141.20
  6. Step 6: Final answer
    x = 4,624,430.34

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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.