Home / 203,145,933.96-280,365,321.16-120,639,718.71

Finding the Fourth Proportional to 203,145,933.96, 280,365,321.16 and 120,639,718.71

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Solution

The fourth proportional to 203,145,933.96, 280,365,321.16 and 120,639,718.71 is: 166,497,024.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,145,933.96 : 280,365,321.16 = 120,639,718.71 : x
  2. Step 2: Convert to fraction form
    203,145,933.96/280,365,321.16 = 120,639,718.71/x
  3. Step 3: Cross multiply
    203,145,933.96x = 280,365,321.16 × 120,639,718.71
  4. Step 4: Simplify right side
    203,145,933.96x = 33,823,193,480,932,008
  5. Step 5: Solve for x
    x = 33,823,193,480,932,008/203,145,933.96
  6. Step 6: Final answer
    x = 166,497,024.19

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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.