Home / 3,619,994.11-4,995,678.11-1,988,435.64

Finding the Fourth Proportional to 3,619,994.11, 4,995,678.11 and 1,988,435.64

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Solution

The fourth proportional to 3,619,994.11, 4,995,678.11 and 1,988,435.64 is: 2,744,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619,994.11 : 4,995,678.11 = 1,988,435.64 : x
  2. Step 2: Convert to fraction form
    3,619,994.11/4,995,678.11 = 1,988,435.64/x
  3. Step 3: Cross multiply
    3,619,994.11x = 4,995,678.11 × 1,988,435.64
  4. Step 4: Simplify right side
    3,619,994.11x = 9,933,584,389,949.66
  5. Step 5: Solve for x
    x = 9,933,584,389,949.66/3,619,994.11
  6. Step 6: Final answer
    x = 2,744,088.55

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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.