The density of ice is 920 kg/m3.
Now let's calculate.
m = 269 000 000 000 000 kg
p = 920 kg/m3
-----------------------------
v=?
V=m/p
V=269 000 000 000 000 kg / 920 kg/m3
V = 292 391 304 347 m3 = 292 391 304.347 km3
v > 269 km3
*NOTE* I made a mistake in the title. I meant to write 269 km3...
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