Home / 66,981,025.71-100,407,765.24-21,510,933.75

Finding the Fourth Proportional to 66,981,025.71, 100,407,765.24 and 21,510,933.75

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Solution

The fourth proportional to 66,981,025.71, 100,407,765.24 and 21,510,933.75 is: 32,245,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,981,025.71 : 100,407,765.24 = 21,510,933.75 : x
  2. Step 2: Convert to fraction form
    66,981,025.71/100,407,765.24 = 21,510,933.75/x
  3. Step 3: Cross multiply
    66,981,025.71x = 100,407,765.24 × 21,510,933.75
  4. Step 4: Simplify right side
    66,981,025.71x = 2,159,864,786,063,192.75
  5. Step 5: Solve for x
    x = 2,159,864,786,063,192.75/66,981,025.71
  6. Step 6: Final answer
    x = 32,245,919.84

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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.