Advertisements
Advertisements
प्रश्न
Find the third proportion to the following :
`9/25` and `18/25`
Advertisements
उत्तर
Let x be the third proportion
`9/25 : 18/25 :: 18/25 : "x"`
`=> 9/25 xx "x" = 18/25 xx 18/25`
`= "x" = 18/25 xx 18/25 xx 25/9`
`= "x" = 36/25`
The third proportion is `36/25`
APPEARS IN
संबंधित प्रश्न
If `a/b = c/d`, show that: `(a^3c + ac^3)/(b^3d + bd^3) = (a + c)^4/(b + d)^4`.
If a, b, c and dare in continued proportion, then prove that
ad (c2 + d2) = c3 (b + d)
If `a/b = c/d = r/f`, prove that `((a^2b^2 + c^2d^2 + e^2f^2)/(ab^3 + cd^3 + ef^3))^(3/2) = sqrt((ace)/(bdf)`
Find the value of x in the following proportions : x : 50 :: 3 : 2
Find two numbers such that the mean proportional between them is 28 and the third proportional to them is 224.
The ratio of boys and girls in a school is 12 : 5. If the number of girls is 840, the total strength of the school is
If a, b, c are in continued proportion, prove that: a2 b2 c2 (a-4 + b-4 + c-4) = b-2(a4 + b4 + c4)
Choose the correct answer from the given options :
The mean proportional between `(1)/(2)` and 128 is
If a, b, c, d, e are in continued proportion, prove that: a : e = a4 : b4.
Determine if the following are in proportion.
24, 28, 36, 48
