Home / 72,560,100.38-100,132,939.73-39,965,052.38

Finding the Fourth Proportional to 72,560,100.38, 100,132,939.73 and 39,965,052.38

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Solution

The fourth proportional to 72,560,100.38, 100,132,939.73 and 39,965,052.38 is: 55,151,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,560,100.38 : 100,132,939.73 = 39,965,052.38 : x
  2. Step 2: Convert to fraction form
    72,560,100.38/100,132,939.73 = 39,965,052.38/x
  3. Step 3: Cross multiply
    72,560,100.38x = 100,132,939.73 × 39,965,052.38
  4. Step 4: Simplify right side
    72,560,100.38x = 4,001,818,180,872,081
  5. Step 5: Solve for x
    x = 4,001,818,180,872,081/72,560,100.38
  6. Step 6: Final answer
    x = 55,151,772.95

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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.