What does cross-multiply mean?
Definitions for cross-multiply
cross-mul·ti·p·ly
This dictionary definitions page includes all the possible meanings, example usage and translations of the word cross-multiply.
Wiktionary
cross-multiplyverb
To set the product of the extremes of a proportion equal to the product of its means.
Cross-multiplying uE000627188uE001 yields uE000627189uE001.
Wikipedia
cross-multiply
In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable. The method is also occasionally known as the "cross your heart" method because lines resembling a heart outline can be drawn to remember which things to multiply together. Given an equation like a b = c d , {\displaystyle {\frac {a}{b}}={\frac {c}{d}},} where b and d are not zero, one can cross-multiply to get a d = b c or a = b c d . {\displaystyle ad=bc\quad {\text{or}}\quad a={\frac {bc}{d}}.} In Euclidean geometry the same calculation can be achieved by considering the ratios as those of similar triangles.
Numerology
Chaldean Numerology
The numerical value of cross-multiply in Chaldean Numerology is: 3
Pythagorean Numerology
The numerical value of cross-multiply in Pythagorean Numerology is: 4
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"cross-multiply." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/cross-multiply>.
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