es mucho mayor que

is much bigger/older than

→ ser
phrase Uncommon #26,070
is much bigger/older than Mayor can mean “bigger” or “older,” depending on context.
SP: Mi hermano es mucho mayor que yo.
EN: My brother is much older than me.

Él es mucho mayor que Ken.

He is much older than Ken.

Tom es mucho mayor que Mary.

Tom is much older than Mary.

Asia es mucho mayor que Australia.

Asia is much larger than Australia.

Él es mucho mayor que ella.

He is much older than her.

Esa mujer es mucho mayor que yo.

That woman is much older than me.

Tom es mucho mayor que yo.

Tom is much older than me.

Tom no es mucho mayor que Mary.

Tom isn't much older than Mary.

La población de Japón es mucho mayor que la de Australia.

Japan's population is much larger than Australia's.

Y es mucho mayor que usted, hable sobre él con respeto.

And he is much older than you, speak about him with respect.

— मुन्ना भाई एम बी बी एस (2003)

Tom no es mucho mayor que María.

Tom is not much older than María.

La velocidad de un aeroplano es mucho mayor que la de un helicóptero.

The speed of an airplane is much greater than that of a helicopter.