Home / 2,165,005.85-2,987,801.85-1,198,136.45

Finding the Fourth Proportional to 2,165,005.85, 2,987,801.85 and 1,198,136.45

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Solution

The fourth proportional to 2,165,005.85, 2,987,801.85 and 1,198,136.45 is: 1,653,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,005.85 : 2,987,801.85 = 1,198,136.45 : x
  2. Step 2: Convert to fraction form
    2,165,005.85/2,987,801.85 = 1,198,136.45/x
  3. Step 3: Cross multiply
    2,165,005.85x = 2,987,801.85 × 1,198,136.45
  4. Step 4: Simplify right side
    2,165,005.85x = 3,579,794,307,085.43
  5. Step 5: Solve for x
    x = 3,579,794,307,085.43/2,165,005.85
  6. Step 6: Final answer
    x = 1,653,480.20

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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.