Home / 2,981,835.60-4,472,753.40-2,178,769.20

Finding the Fourth Proportional to 2,981,835.60, 4,472,753.40 and 2,178,769.20

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Solution

The fourth proportional to 2,981,835.60, 4,472,753.40 and 2,178,769.20 is: 3,268,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981,835.60 : 4,472,753.40 = 2,178,769.20 : x
  2. Step 2: Convert to fraction form
    2,981,835.60/4,472,753.40 = 2,178,769.20/x
  3. Step 3: Cross multiply
    2,981,835.60x = 4,472,753.40 × 2,178,769.20
  4. Step 4: Simplify right side
    2,981,835.60x = 9,745,097,347,115.28
  5. Step 5: Solve for x
    x = 9,745,097,347,115.28/2,981,835.60
  6. Step 6: Final answer
    x = 3,268,153.80

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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.