Home / 2,687,073.70-4,021,753.20-1,889,912.20

Finding the Fourth Proportional to 2,687,073.70, 4,021,753.20 and 1,889,912.20

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Solution

The fourth proportional to 2,687,073.70, 4,021,753.20 and 1,889,912.20 is: 2,828,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687,073.70 : 4,021,753.20 = 1,889,912.20 : x
  2. Step 2: Convert to fraction form
    2,687,073.70/4,021,753.20 = 1,889,912.20/x
  3. Step 3: Cross multiply
    2,687,073.70x = 4,021,753.20 × 1,889,912.20
  4. Step 4: Simplify right side
    2,687,073.70x = 7,600,760,438,069.04
  5. Step 5: Solve for x
    x = 7,600,760,438,069.04/2,687,073.70
  6. Step 6: Final answer
    x = 2,828,638.62

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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.