Home / 2,140,414.20-3,210,621.30-1,129,145.40

Finding the Fourth Proportional to 2,140,414.20, 3,210,621.30 and 1,129,145.40

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Solution

The fourth proportional to 2,140,414.20, 3,210,621.30 and 1,129,145.40 is: 1,693,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,414.20 : 3,210,621.30 = 1,129,145.40 : x
  2. Step 2: Convert to fraction form
    2,140,414.20/3,210,621.30 = 1,129,145.40/x
  3. Step 3: Cross multiply
    2,140,414.20x = 3,210,621.30 × 1,129,145.40
  4. Step 4: Simplify right side
    2,140,414.20x = 3,625,258,272,037.02
  5. Step 5: Solve for x
    x = 3,625,258,272,037.02/2,140,414.20
  6. Step 6: Final answer
    x = 1,693,718.10

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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.