The Golden Ratio, often denoted by the Greek letter φ (phi), is a mathematical ratio approximately equal to 1.618. It occurs when a line is divided into two parts, such that the ratio of the whole line to the longer part is the same as the ratio of the longer part to the shorter part. This ratio is frequently found in nature, art, and architecture, contributing to aesthetically pleasing compositions. In addition to its mathematical significance, the Golden Ratio has been used by artists like Leonardo da Vinci and architects such as Le Corbusier to create harmonious designs. It can also be observed in the patterns of sunflowers, the arrangement of leaves, and even in the proportions of the human body.