Home / 12,788,100.70-17,647,372.47-6,986,757.58

Finding the Fourth Proportional to 12,788,100.70, 17,647,372.47 and 6,986,757.58

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Solution

The fourth proportional to 12,788,100.70, 17,647,372.47 and 6,986,757.58 is: 9,641,612.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,100.70 : 17,647,372.47 = 6,986,757.58 : x
  2. Step 2: Convert to fraction form
    12,788,100.70/17,647,372.47 = 6,986,757.58/x
  3. Step 3: Cross multiply
    12,788,100.70x = 17,647,372.47 × 6,986,757.58
  4. Step 4: Simplify right side
    12,788,100.70x = 123,297,913,371,855.81
  5. Step 5: Solve for x
    x = 123,297,913,371,855.81/12,788,100.70
  6. Step 6: Final answer
    x = 9,641,612.64

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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.