Home / 2,129,687.40-3,194,531.10-1,967,485.80

Finding the Fourth Proportional to 2,129,687.40, 3,194,531.10 and 1,967,485.80

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Solution

The fourth proportional to 2,129,687.40, 3,194,531.10 and 1,967,485.80 is: 2,951,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,687.40 : 3,194,531.10 = 1,967,485.80 : x
  2. Step 2: Convert to fraction form
    2,129,687.40/3,194,531.10 = 1,967,485.80/x
  3. Step 3: Cross multiply
    2,129,687.40x = 3,194,531.10 × 1,967,485.80
  4. Step 4: Simplify right side
    2,129,687.40x = 6,285,194,576,908.38
  5. Step 5: Solve for x
    x = 6,285,194,576,908.38/2,129,687.40
  6. Step 6: Final answer
    x = 2,951,228.70

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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.