$$\frac{x}{6}=16$$
$$x = 16 \cdot 6$$
$$x = 96$$
$$\frac{180}{y} = 60$$
$$y = \frac{180}{60}$$
$$y = 3$$
$$\frac{t}{40} = 8$$
$$t = 8 \cdot 40$$
$$t = 320$$
$$\frac{630}{k} = 9$$
$$k = \frac{630}{9}$$
$$k = 70$$
Ответ: x = 96, y = 3, t = 320, k = 70.