Home / 2,129,168.20-3,194,141.10-867,123.40

Finding the Fourth Proportional to 2,129,168.20, 3,194,141.10 and 867,123.40

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Solution

The fourth proportional to 2,129,168.20, 3,194,141.10 and 867,123.40 is: 1,300,843.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,168.20 : 3,194,141.10 = 867,123.40 : x
  2. Step 2: Convert to fraction form
    2,129,168.20/3,194,141.10 = 867,123.40/x
  3. Step 3: Cross multiply
    2,129,168.20x = 3,194,141.10 × 867,123.40
  4. Step 4: Simplify right side
    2,129,168.20x = 2,769,714,490,711.74
  5. Step 5: Solve for x
    x = 2,769,714,490,711.74/2,129,168.20
  6. Step 6: Final answer
    x = 1,300,843.44

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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.