Home / 512,486,799.14-768,861,287.51-148,981,155.14

Finding the Fourth Proportional to 512,486,799.14, 768,861,287.51 and 148,981,155.14

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Solution

The fourth proportional to 512,486,799.14, 768,861,287.51 and 148,981,155.14 is: 223,509,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,486,799.14 : 768,861,287.51 = 148,981,155.14 : x
  2. Step 2: Convert to fraction form
    512,486,799.14/768,861,287.51 = 148,981,155.14/x
  3. Step 3: Cross multiply
    512,486,799.14x = 768,861,287.51 × 148,981,155.14
  4. Step 4: Simplify right side
    512,486,799.14x = 114,545,842,751,078,240
  5. Step 5: Solve for x
    x = 114,545,842,751,078,240/512,486,799.14
  6. Step 6: Final answer
    x = 223,509,840.54

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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.