Home / 3,928,299.48-5,420,999.88-2,209,419.36

Finding the Fourth Proportional to 3,928,299.48, 5,420,999.88 and 2,209,419.36

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Solution

The fourth proportional to 3,928,299.48, 5,420,999.88 and 2,209,419.36 is: 3,048,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,299.48 : 5,420,999.88 = 2,209,419.36 : x
  2. Step 2: Convert to fraction form
    3,928,299.48/5,420,999.88 = 2,209,419.36/x
  3. Step 3: Cross multiply
    3,928,299.48x = 5,420,999.88 × 2,209,419.36
  4. Step 4: Simplify right side
    3,928,299.48x = 11,977,262,085,429.68
  5. Step 5: Solve for x
    x = 11,977,262,085,429.68/3,928,299.48
  6. Step 6: Final answer
    x = 3,048,968.68

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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.