Home / 640,936,311.76-961,566,128.52-296,133,716.80

Finding the Fourth Proportional to 640,936,311.76, 961,566,128.52 and 296,133,716.80

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Solution

The fourth proportional to 640,936,311.76, 961,566,128.52 and 296,133,716.80 is: 444,275,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,936,311.76 : 961,566,128.52 = 296,133,716.80 : x
  2. Step 2: Convert to fraction form
    640,936,311.76/961,566,128.52 = 296,133,716.80/x
  3. Step 3: Cross multiply
    640,936,311.76x = 961,566,128.52 × 296,133,716.80
  4. Step 4: Simplify right side
    640,936,311.76x = 284,752,151,587,614,080
  5. Step 5: Solve for x
    x = 284,752,151,587,614,080/640,936,311.76
  6. Step 6: Final answer
    x = 444,275,267.86

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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.