Diketahui perbandingan a : b = c : d. Jika a = 5, b = 12, dan c = 45, nilai d =​ ….

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Diketahui perbandingan a : b = c : d. Jika a = 5, b = 12, dan c = 45, nilai d =​ ….

begin{aligned} &tt bold{Mapel~:~Matematika} \ &tt bold{Bab~~~~~:~Perbandingan} end{aligned}

begin{aligned} frac{sf a}{sf b} & = frac{sf c}{sf d} \ sf frac{5}{12} & = sf frac{45}{d} \ sf d(5) & = sf 12(45) \ sf 5d & = sf 540 \ sf d & = sf frac{540}{5} \ sf d & = sf 108 end{aligned}

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