Home / 6,721,135.12-9,275,721.36-3,821,438.80

Finding the Fourth Proportional to 6,721,135.12, 9,275,721.36 and 3,821,438.80

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Solution

The fourth proportional to 6,721,135.12, 9,275,721.36 and 3,821,438.80 is: 5,273,901.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721,135.12 : 9,275,721.36 = 3,821,438.80 : x
  2. Step 2: Convert to fraction form
    6,721,135.12/9,275,721.36 = 3,821,438.80/x
  3. Step 3: Cross multiply
    6,721,135.12x = 9,275,721.36 × 3,821,438.80
  4. Step 4: Simplify right side
    6,721,135.12x = 35,446,601,503,092.77
  5. Step 5: Solve for x
    x = 35,446,601,503,092.77/6,721,135.12
  6. Step 6: Final answer
    x = 5,273,901.04

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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.