Home / 5,174,231.81-7,140,753.40-2,851,121.48

Finding the Fourth Proportional to 5,174,231.81, 7,140,753.40 and 2,851,121.48

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Solution

The fourth proportional to 5,174,231.81, 7,140,753.40 and 2,851,121.48 is: 3,934,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174,231.81 : 7,140,753.40 = 2,851,121.48 : x
  2. Step 2: Convert to fraction form
    5,174,231.81/7,140,753.40 = 2,851,121.48/x
  3. Step 3: Cross multiply
    5,174,231.81x = 7,140,753.40 × 2,851,121.48
  4. Step 4: Simplify right side
    5,174,231.81x = 20,359,155,404,804.05
  5. Step 5: Solve for x
    x = 20,359,155,404,804.05/5,174,231.81
  6. Step 6: Final answer
    x = 3,934,720.39

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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.