Home / 293,490,687.72-405,022,180.32-161,337,254.40

Finding the Fourth Proportional to 293,490,687.72, 405,022,180.32 and 161,337,254.40

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Solution

The fourth proportional to 293,490,687.72, 405,022,180.32 and 161,337,254.40 is: 222,648,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,490,687.72 : 405,022,180.32 = 161,337,254.40 : x
  2. Step 2: Convert to fraction form
    293,490,687.72/405,022,180.32 = 161,337,254.40/x
  3. Step 3: Cross multiply
    293,490,687.72x = 405,022,180.32 × 161,337,254.40
  4. Step 4: Simplify right side
    293,490,687.72x = 65,345,166,543,930,512
  5. Step 5: Solve for x
    x = 65,345,166,543,930,512/293,490,687.72
  6. Step 6: Final answer
    x = 222,648,176.85

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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.