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Finding the Fourth Proportional to 2,190,995.20, 3,286,492.80 and 2,190,995.20

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Solution

The fourth proportional to 2,190,995.20, 3,286,492.80 and 2,190,995.20 is: 3,286,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,995.20 : 3,286,492.80 = 2,190,995.20 : x
  2. Step 2: Convert to fraction form
    2,190,995.20/3,286,492.80 = 2,190,995.20/x
  3. Step 3: Cross multiply
    2,190,995.20x = 3,286,492.80 × 2,190,995.20
  4. Step 4: Simplify right side
    2,190,995.20x = 7,200,689,949,634.56
  5. Step 5: Solve for x
    x = 7,200,689,949,634.56/2,190,995.20
  6. Step 6: Final answer
    x = 3,286,492.80

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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.