The simple answer is no. Here's an simple example explaning this, consider 2 website with similar pagerank, ipl.org and carlosbakery.com both these sites have PR4. But if you are around SEO for a while you might notice that a link from ipl.org will be consider far more valuable than a link from carlosbakery.com. Getting a link from ipl.org is a big deal and its one of those site that Google trusts.