Home / 3,419,077.40-5,128,616.10-1,998,402.20

Finding the Fourth Proportional to 3,419,077.40, 5,128,616.10 and 1,998,402.20

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Solution

The fourth proportional to 3,419,077.40, 5,128,616.10 and 1,998,402.20 is: 2,997,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,077.40 : 5,128,616.10 = 1,998,402.20 : x
  2. Step 2: Convert to fraction form
    3,419,077.40/5,128,616.10 = 1,998,402.20/x
  3. Step 3: Cross multiply
    3,419,077.40x = 5,128,616.10 × 1,998,402.20
  4. Step 4: Simplify right side
    3,419,077.40x = 10,249,037,697,195.42
  5. Step 5: Solve for x
    x = 10,249,037,697,195.42/3,419,077.40
  6. Step 6: Final answer
    x = 2,997,603.30

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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.