Home / 71,864,969,821.80-99,167,002,947.42-39,749,640,767.52

Finding the Fourth Proportional to 71,864,969,821.80, 99,167,002,947.42 and 39,749,640,767.52

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Solution

The fourth proportional to 71,864,969,821.80, 99,167,002,947.42 and 39,749,640,767.52 is: 54,850,823,049.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864,969,821.80 : 99,167,002,947.42 = 39,749,640,767.52 : x
  2. Step 2: Convert to fraction form
    71,864,969,821.80/99,167,002,947.42 = 39,749,640,767.52/x
  3. Step 3: Cross multiply
    71,864,969,821.80x = 99,167,002,947.42 × 39,749,640,767.52
  4. Step 4: Simplify right side
    71,864,969,821.80x = 3,941,852,743,151,541,813,248
  5. Step 5: Solve for x
    x = 3,941,852,743,151,541,813,248/71,864,969,821.80
  6. Step 6: Final answer
    x = 54,850,823,049.48

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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.