Home / 7,881,328.80-11,821,993.20-2,833,149.60

Finding the Fourth Proportional to 7,881,328.80, 11,821,993.20 and 2,833,149.60

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Solution

The fourth proportional to 7,881,328.80, 11,821,993.20 and 2,833,149.60 is: 4,249,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,328.80 : 11,821,993.20 = 2,833,149.60 : x
  2. Step 2: Convert to fraction form
    7,881,328.80/11,821,993.20 = 2,833,149.60/x
  3. Step 3: Cross multiply
    7,881,328.80x = 11,821,993.20 × 2,833,149.60
  4. Step 4: Simplify right side
    7,881,328.80x = 33,493,475,305,782.72
  5. Step 5: Solve for x
    x = 33,493,475,305,782.72/7,881,328.80
  6. Step 6: Final answer
    x = 4,249,724.40

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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.