Home / 426,594,858.87-639,330,451.75-180,647,165.59

Finding the Fourth Proportional to 426,594,858.87, 639,330,451.75 and 180,647,165.59

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Solution

The fourth proportional to 426,594,858.87, 639,330,451.75 and 180,647,165.59 is: 270,732,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,594,858.87 : 639,330,451.75 = 180,647,165.59 : x
  2. Step 2: Convert to fraction form
    426,594,858.87/639,330,451.75 = 180,647,165.59/x
  3. Step 3: Cross multiply
    426,594,858.87x = 639,330,451.75 × 180,647,165.59
  4. Step 4: Simplify right side
    426,594,858.87x = 115,493,233,984,011,760
  5. Step 5: Solve for x
    x = 115,493,233,984,011,760/426,594,858.87
  6. Step 6: Final answer
    x = 270,732,831.36

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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.