Home / 215,327,904.62-297,113,311.64-121,227,418.22

Finding the Fourth Proportional to 215,327,904.62, 297,113,311.64 and 121,227,418.22

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Solution

The fourth proportional to 215,327,904.62, 297,113,311.64 and 121,227,418.22 is: 167,271,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,327,904.62 : 297,113,311.64 = 121,227,418.22 : x
  2. Step 2: Convert to fraction form
    215,327,904.62/297,113,311.64 = 121,227,418.22/x
  3. Step 3: Cross multiply
    215,327,904.62x = 297,113,311.64 × 121,227,418.22
  4. Step 4: Simplify right side
    215,327,904.62x = 36,018,279,687,728,976
  5. Step 5: Solve for x
    x = 36,018,279,687,728,976/215,327,904.62
  6. Step 6: Final answer
    x = 167,271,769.78

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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.