Home / 7,778,015.20-11,667,022.80-5,090,629.60

Finding the Fourth Proportional to 7,778,015.20, 11,667,022.80 and 5,090,629.60

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Solution

The fourth proportional to 7,778,015.20, 11,667,022.80 and 5,090,629.60 is: 7,635,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778,015.20 : 11,667,022.80 = 5,090,629.60 : x
  2. Step 2: Convert to fraction form
    7,778,015.20/11,667,022.80 = 5,090,629.60/x
  3. Step 3: Cross multiply
    7,778,015.20x = 11,667,022.80 × 5,090,629.60
  4. Step 4: Simplify right side
    7,778,015.20x = 59,392,491,609,554.88
  5. Step 5: Solve for x
    x = 59,392,491,609,554.88/7,778,015.20
  6. Step 6: Final answer
    x = 7,635,944.40

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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.