Home / 3,978,766,989.88-5,490,715,516.16-2,170,318,269.61

Finding the Fourth Proportional to 3,978,766,989.88, 5,490,715,516.16 and 2,170,318,269.61

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Solution

The fourth proportional to 3,978,766,989.88, 5,490,715,516.16 and 2,170,318,269.61 is: 2,995,048,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,766,989.88 : 5,490,715,516.16 = 2,170,318,269.61 : x
  2. Step 2: Convert to fraction form
    3,978,766,989.88/5,490,715,516.16 = 2,170,318,269.61/x
  3. Step 3: Cross multiply
    3,978,766,989.88x = 5,490,715,516.16 × 2,170,318,269.61
  4. Step 4: Simplify right side
    3,978,766,989.88x = 11,916,600,197,959,827,456
  5. Step 5: Solve for x
    x = 11,916,600,197,959,827,456/3,978,766,989.88
  6. Step 6: Final answer
    x = 2,995,048,523.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.