Home / 3,438,380.10-4,744,686.60-1,988,169.60

Finding the Fourth Proportional to 3,438,380.10, 4,744,686.60 and 1,988,169.60

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Solution

The fourth proportional to 3,438,380.10, 4,744,686.60 and 1,988,169.60 is: 2,743,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,380.10 : 4,744,686.60 = 1,988,169.60 : x
  2. Step 2: Convert to fraction form
    3,438,380.10/4,744,686.60 = 1,988,169.60/x
  3. Step 3: Cross multiply
    3,438,380.10x = 4,744,686.60 × 1,988,169.60
  4. Step 4: Simplify right side
    3,438,380.10x = 9,433,241,659,647.36
  5. Step 5: Solve for x
    x = 9,433,241,659,647.36/3,438,380.10
  6. Step 6: Final answer
    x = 2,743,513.34

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1.5x scale

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.