Home / 836,728,578.30-1,255,140,106.65-254,481,818.70

Finding the Fourth Proportional to 836,728,578.30, 1,255,140,106.65 and 254,481,818.70

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Solution

The fourth proportional to 836,728,578.30, 1,255,140,106.65 and 254,481,818.70 is: 381,737,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,728,578.30 : 1,255,140,106.65 = 254,481,818.70 : x
  2. Step 2: Convert to fraction form
    836,728,578.30/1,255,140,106.65 = 254,481,818.70/x
  3. Step 3: Cross multiply
    836,728,578.30x = 1,255,140,106.65 × 254,481,818.70
  4. Step 4: Simplify right side
    836,728,578.30x = 319,410,337,063,603,968
  5. Step 5: Solve for x
    x = 319,410,337,063,603,968/836,728,578.30
  6. Step 6: Final answer
    x = 381,737,095.33

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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.