EXAMP. 1. How much Sterling money is equal to 1459 ducats 18 sols 1 denier, bank money of Venice, exchange at 52½d. Sterling per ducat?

Duc. d. Duc. sol. den. d.
If 1 : 52½ :: 1459 18 1 52½ rate.
52½
Sols.
2918 10 = ½ 26½
7295 5 = ½ 13½
2 = ½
1 = ½
d. 75868 den. 1 = ½
½ = 729½
¼ = 364½ 47½
76962½
47½
Rem.
12)77010(6d.
20)6417(17s.

L. 320 17 6 Sterling. Ans.

2. How many ducats at Venice are equal to 385 l. 12s. 6d. Sterling, exchange at 45. 4d. per ducat?

L. Duc. L.
If .216 : 1 :: 385.625
.216)385.625
21 385625
Duc.
195)347062.5(1779.8 Ans.
195
1520
1365
1556
1365
1912
1755
1575
1560
(15)

Bank money is reduced to current money, by allowing for the agio, as was done in exchange with Holland; viz. say, As 100 to 120, or as 10 to 12, or as 5 to 6, so the given bank money to the current sought. And current money is reduced to bank money by reversing the operation. And in like manner may picoli money be reduced to current or to bank money, and the contrary.

100 ducats banco of Venice.

In Leghorn = 93 pezzos | In Lucca = 77 crowns
In Rome = 68½ crowns | In Francfort = 139½ florins

12 Denari } make 1 soldi s. d.
20 Soldi } make 1 pezzo = 4 6 Sterling.

Books and accounts are generally kept in pezzos, soldi, and denari; but some keep them in lires, soldi, and denari; and 12 such denari make 1 soldi, and 20 soldi make 1 lire.

The pezzo of exchange is equal to 5½ lires; and, consequently, exchange money is 5½ times better than the lire money. The course of exchange runs from 47d. to 58d. Sterling per pezzo.