What is the ratio of the force of the father on the baby to

Question

Astrology, that unlikely and vague pseudoscience, makes much of the position of the planets at the moment of one's birth. The only known force that a planet could exerts on us is gravitational, so if there is anything to astrology we should expect this force to be significant.

Randomized Variables

m_b = 3.5 kg
m_f = 85 kg
d = 0.18 m

Part (a) Calculate the gravitational force, in newtons, exerted on a 3.5 kg baby by a 85 kg father who is a distance of 0.18 m away at the time of its birth.

Part (b) Calculate the force on the baby, in newtons, due to Jupiter (the largest planet, which has a mass of 1.90 x 10²⁷ kg) if it is at its closest distance to Earth, 6.29 x 10¹¹ m away.

Part (c) What is the ratio of the force of the father on the baby to the force of Jupiter on the baby?