Home / 3,918,152.52-5,406,753.78-2,198,941.02

Finding the Fourth Proportional to 3,918,152.52, 5,406,753.78 and 2,198,941.02

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Solution

The fourth proportional to 3,918,152.52, 5,406,753.78 and 2,198,941.02 is: 3,034,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,152.52 : 5,406,753.78 = 2,198,941.02 : x
  2. Step 2: Convert to fraction form
    3,918,152.52/5,406,753.78 = 2,198,941.02/x
  3. Step 3: Cross multiply
    3,918,152.52x = 5,406,753.78 × 2,198,941.02
  4. Step 4: Simplify right side
    3,918,152.52x = 11,889,132,671,882.06
  5. Step 5: Solve for x
    x = 11,889,132,671,882.06/3,918,152.52
  6. Step 6: Final answer
    x = 3,034,372.10

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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.