Home / 20,661,664.60-30,981,437.70-8,680,864.60

Finding the Fourth Proportional to 20,661,664.60, 30,981,437.70 and 8,680,864.60

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Solution

The fourth proportional to 20,661,664.60, 30,981,437.70 and 8,680,864.60 is: 13,016,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661,664.60 : 30,981,437.70 = 8,680,864.60 : x
  2. Step 2: Convert to fraction form
    20,661,664.60/30,981,437.70 = 8,680,864.60/x
  3. Step 3: Cross multiply
    20,661,664.60x = 30,981,437.70 × 8,680,864.60
  4. Step 4: Simplify right side
    20,661,664.60x = 268,945,665,787,035.41
  5. Step 5: Solve for x
    x = 268,945,665,787,035.41/20,661,664.60
  6. Step 6: Final answer
    x = 13,016,650.45

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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.