Home / 2,100,028.20-3,150,042.30-1,298,711.40

Finding the Fourth Proportional to 2,100,028.20, 3,150,042.30 and 1,298,711.40

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Solution

The fourth proportional to 2,100,028.20, 3,150,042.30 and 1,298,711.40 is: 1,948,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,028.20 : 3,150,042.30 = 1,298,711.40 : x
  2. Step 2: Convert to fraction form
    2,100,028.20/3,150,042.30 = 1,298,711.40/x
  3. Step 3: Cross multiply
    2,100,028.20x = 3,150,042.30 × 1,298,711.40
  4. Step 4: Simplify right side
    2,100,028.20x = 4,090,995,845,492.22
  5. Step 5: Solve for x
    x = 4,090,995,845,492.22/2,100,028.20
  6. Step 6: Final answer
    x = 1,948,067.10

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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.