Many people wonder how Google ranks each search result; is there a different algorithm for results 1-3, and another algorithm for results 4-6, and yet another algorithm for results 7-10? The short answer to this question is that Google does not use different algorithms for each individual search result.
Google uses the same algorithm to create 100’s and even 1000’s of web results; they then go through each web result, and sort through them, the ones that they find are most relevant and reputable, will appear higher in search results.
Google will always continue to push for the highest quality of content from the most reliable and reputable sources. Matt Cutts answered this question in the following video, emphasizing that the algorithm used is the same for all search results, and that Google Search results are not weighted differently according to where they are displayed in the SERP.