Home / 10,777,930.88-16,171,335.92-7,913,923.16

Finding the Fourth Proportional to 10,777,930.88, 16,171,335.92 and 7,913,923.16

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Solution

The fourth proportional to 10,777,930.88, 16,171,335.92 and 7,913,923.16 is: 11,874,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777,930.88 : 16,171,335.92 = 7,913,923.16 : x
  2. Step 2: Convert to fraction form
    10,777,930.88/16,171,335.92 = 7,913,923.16/x
  3. Step 3: Cross multiply
    10,777,930.88x = 16,171,335.92 × 7,913,923.16
  4. Step 4: Simplify right side
    10,777,930.88x = 127,978,709,804,356.03
  5. Step 5: Solve for x
    x = 127,978,709,804,356.03/10,777,930.88
  6. Step 6: Final answer
    x = 11,874,144.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.