Home / 255,530,611.20-383,295,916.80-212,448,460.80

Finding the Fourth Proportional to 255,530,611.20, 383,295,916.80 and 212,448,460.80

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Solution

The fourth proportional to 255,530,611.20, 383,295,916.80 and 212,448,460.80 is: 318,672,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,530,611.20 : 383,295,916.80 = 212,448,460.80 : x
  2. Step 2: Convert to fraction form
    255,530,611.20/383,295,916.80 = 212,448,460.80/x
  3. Step 3: Cross multiply
    255,530,611.20x = 383,295,916.80 × 212,448,460.80
  4. Step 4: Simplify right side
    255,530,611.20x = 81,430,627,555,084,864
  5. Step 5: Solve for x
    x = 81,430,627,555,084,864/255,530,611.20
  6. Step 6: Final answer
    x = 318,672,691.20

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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.