Home / 611,352,650.70-843,451,449.30-399,783,333.42

Finding the Fourth Proportional to 611,352,650.70, 843,451,449.30 and 399,783,333.42

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Solution

The fourth proportional to 611,352,650.70, 843,451,449.30 and 399,783,333.42 is: 551,560,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,352,650.70 : 843,451,449.30 = 399,783,333.42 : x
  2. Step 2: Convert to fraction form
    611,352,650.70/843,451,449.30 = 399,783,333.42/x
  3. Step 3: Cross multiply
    611,352,650.70x = 843,451,449.30 × 399,783,333.42
  4. Step 4: Simplify right side
    611,352,650.70x = 337,197,831,979,084,096
  5. Step 5: Solve for x
    x = 337,197,831,979,084,096/611,352,650.70
  6. Step 6: Final answer
    x = 551,560,268.19

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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.