Home / 426,594,857.87-639,330,450.26-180,647,164.59

Finding the Fourth Proportional to 426,594,857.87, 639,330,450.26 and 180,647,164.59

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Solution

The fourth proportional to 426,594,857.87, 639,330,450.26 and 180,647,164.59 is: 270,732,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,594,857.87 : 639,330,450.26 = 180,647,164.59 : x
  2. Step 2: Convert to fraction form
    426,594,857.87/639,330,450.26 = 180,647,164.59/x
  3. Step 3: Cross multiply
    426,594,857.87x = 639,330,450.26 × 180,647,164.59
  4. Step 4: Simplify right side
    426,594,857.87x = 115,493,233,074,613,792
  5. Step 5: Solve for x
    x = 115,493,233,074,613,792/426,594,857.87
  6. Step 6: Final answer
    x = 270,732,829.86

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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.