Home / 2,612,820,811.20-3,913,856,445.60-1,321,084,132.80

Finding the Fourth Proportional to 2,612,820,811.20, 3,913,856,445.60 and 1,321,084,132.80

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Solution

The fourth proportional to 2,612,820,811.20, 3,913,856,445.60 and 1,321,084,132.80 is: 1,978,908,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,820,811.20 : 3,913,856,445.60 = 1,321,084,132.80 : x
  2. Step 2: Convert to fraction form
    2,612,820,811.20/3,913,856,445.60 = 1,321,084,132.80/x
  3. Step 3: Cross multiply
    2,612,820,811.20x = 3,913,856,445.60 × 1,321,084,132.80
  4. Step 4: Simplify right side
    2,612,820,811.20x = 5,170,533,648,339,166,208
  5. Step 5: Solve for x
    x = 5,170,533,648,339,166,208/2,612,820,811.20
  6. Step 6: Final answer
    x = 1,978,908,628.63

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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.