In following on from the preceding papers [1-13], this paper presents the case for the disparity between vacuum energy [14] and the associated metric expansion of space energy requirements. A solution is provided to this problem while correctly deriving the value for the Lamb shift radiation as evidence for vacuum energy marrying up correctly with a newly proposed large scale cosmological model, such in the context of a revised understanding of the redshift effect and associated scaling system for the Planck constant [13]. The process of proof presented here is by taking a close look at the theory behind the metric expansion of space, those calculations, and any of those associated assumptions of theory and modelling of time and space in those calculations and observations that could lead to the cosmological constant problem, and thus determine in fact why the value for the proposed energy of space needs to be so disproportionate compared to the known vacuum energy value. Above all, this paper shall present proof for vacuum energy in a steady-state reality, such by using the fundamental basis of the phi-quantum wave-function scaling system in deriving the temperature value of the CMBR and Boltzmann constant, and finally proof for the precession of the perihelion of Mercury which is demonstrated to be directed related to the vacuum energy of space and CMBR.