Home / 8,682,728-11,982,164.64-4,815,841.28

Finding the Fourth Proportional to 8,682,728, 11,982,164.64 and 4,815,841.28

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Solution

The fourth proportional to 8,682,728, 11,982,164.64 and 4,815,841.28 is: 6,645,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682,728 : 11,982,164.64 = 4,815,841.28 : x
  2. Step 2: Convert to fraction form
    8,682,728/11,982,164.64 = 4,815,841.28/x
  3. Step 3: Cross multiply
    8,682,728x = 11,982,164.64 × 4,815,841.28
  4. Step 4: Simplify right side
    8,682,728x = 57,704,203,097,068.34
  5. Step 5: Solve for x
    x = 57,704,203,097,068.34/8,682,728
  6. Step 6: Final answer
    x = 6,645,860.97

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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.