Home / 3,918,121.02-5,406,710.31-2,198,909.52

Finding the Fourth Proportional to 3,918,121.02, 5,406,710.31 and 2,198,909.52

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Solution

The fourth proportional to 3,918,121.02, 5,406,710.31 and 2,198,909.52 is: 3,034,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,121.02 : 5,406,710.31 = 2,198,909.52 : x
  2. Step 2: Convert to fraction form
    3,918,121.02/5,406,710.31 = 2,198,909.52/x
  3. Step 3: Cross multiply
    3,918,121.02x = 5,406,710.31 × 2,198,909.52
  4. Step 4: Simplify right side
    3,918,121.02x = 11,888,866,772,541.15
  5. Step 5: Solve for x
    x = 11,888,866,772,541.15/3,918,121.02
  6. Step 6: Final answer
    x = 3,034,328.63

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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.