Flowlogistic's management has assessed that their current Apache Kafka servers are inadequate for handling the data volume required by their real-time inventory tracking system. Your task is to design a new system using Google Cloud Platform (GCP) that will integrate with their proprietary tracking software. This new system must be capable of ingesting data from multiple global sources, performing real-time processing and querying, and storing the data in a reliable manner. Which combination of GCP products would be most suitable for this requirement?