I will give a more complete answer.
At the beginning of Google, results where ordered like that
#1 result : Pagerank score * relevancy score (for instance : 100)
#2 result : Pagerank score * relevancy score (for instance : 90)
#3 result : Pagerank score * relevancy score (for instance : 80)
To give an idea of what pagerank was for websites owner, google gave a metric where (it is an example):
real PageRank score > 10000 = PageRank metric (given by google) 5
real PageRank score > 1000 = PageRank metric 4
real PageRank score > 100 = PageRank metric 3
real PageRank score > 10 = PageRank metric 2
real PageRank score > 5 = PageRank metrick 1
real PageRank score > 0 = PageRank metric 0
But, by now, Pagerank has become just an indicator in hundreds of indicators explaining the rankings.