Home / 5,428,609.80-8,138,978.10-2,232,090.60

Finding the Fourth Proportional to 5,428,609.80, 8,138,978.10 and 2,232,090.60

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Solution

The fourth proportional to 5,428,609.80, 8,138,978.10 and 2,232,090.60 is: 3,346,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,609.80 : 8,138,978.10 = 2,232,090.60 : x
  2. Step 2: Convert to fraction form
    5,428,609.80/8,138,978.10 = 2,232,090.60/x
  3. Step 3: Cross multiply
    5,428,609.80x = 8,138,978.10 × 2,232,090.60
  4. Step 4: Simplify right side
    5,428,609.80x = 18,166,936,510,615.86
  5. Step 5: Solve for x
    x = 18,166,936,510,615.86/5,428,609.80
  6. Step 6: Final answer
    x = 3,346,517.28

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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.