Home / 994,164,980.43-1,491,400,698.39-338,962,778.76

Finding the Fourth Proportional to 994,164,980.43, 1,491,400,698.39 and 338,962,778.76

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Solution

The fourth proportional to 994,164,980.43, 1,491,400,698.39 and 338,962,778.76 is: 508,496,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,164,980.43 : 1,491,400,698.39 = 338,962,778.76 : x
  2. Step 2: Convert to fraction form
    994,164,980.43/1,491,400,698.39 = 338,962,778.76/x
  3. Step 3: Cross multiply
    994,164,980.43x = 1,491,400,698.39 × 338,962,778.76
  4. Step 4: Simplify right side
    994,164,980.43x = 505,529,324,970,879,104
  5. Step 5: Solve for x
    x = 505,529,324,970,879,104/994,164,980.43
  6. Step 6: Final answer
    x = 508,496,411.48

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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.