A Race Around the Globe
Alice, Bob, Carly, and Dave are in a flying race!
Alice's plane is twice as fast as Bob's plane.
When Alice finishes the race, the distance between her and Carly is \(D.\)
When Bob finishes the race, the distance between him and Dave is \(D.\)
If Bob's plane is three times as fast as Carly's plane, then how many times faster is Alice's plane than Dave's plane?