Home / 120,590,544.96-166,414,489.20-65,587,320

Finding the Fourth Proportional to 120,590,544.96, 166,414,489.20 and 65,587,320

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Solution

The fourth proportional to 120,590,544.96, 166,414,489.20 and 65,587,320 is: 90,510,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,590,544.96 : 166,414,489.20 = 65,587,320 : x
  2. Step 2: Convert to fraction form
    120,590,544.96/166,414,489.20 = 65,587,320/x
  3. Step 3: Cross multiply
    120,590,544.96x = 166,414,489.20 × 65,587,320
  4. Step 4: Simplify right side
    120,590,544.96x = 10,914,680,355,796,944
  5. Step 5: Solve for x
    x = 10,914,680,355,796,944/120,590,544.96
  6. Step 6: Final answer
    x = 90,510,249.87

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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.