Not the way it works
you get 50% of your dna from each parent. After that people talk in averages. So they "say" you get 25% of your dna from each grandparent and 12.5% from each great grandparent and so on. But that is just an average. You can get 5% of your dna from one of your grandparents and 45% from the other in that couple. That's an extreme, but lets say it's 15% from one and 35% from the other. At that point the maximum amount you can get from the 15% grandparent's parent drops considerably. It does not take long until you inherited 0% from an ancestor. And therefore 0% from all of their ancestors.