Finding the Fourth Proportional to 17,556,412.80, 26,334,619.20 and 15,430,648.80
Calculator
Solution
The fourth proportional to 17,556,412.80, 26,334,619.20 and 15,430,648.80 is: 23,145,973.20
Step by Step Solution
- Step 1: Write the proportion equation
17,556,412.80 : 26,334,619.20 = 15,430,648.80 : x - Step 2: Convert to fraction form
17,556,412.80/26,334,619.20 = 15,430,648.80/x - Step 3: Cross multiply
17,556,412.80x = 26,334,619.20 × 15,430,648.80 - Step 4: Simplify right side
17,556,412.80x = 406,360,260,156,936.94 - Step 5: Solve for x
x = 406,360,260,156,936.94/17,556,412.80 - Step 6: Final answer
x = 23,145,973.20
Related Problems
Find fourth proportional to 8,778,206.40, 13,167,309.60 and 7,715,324.40
Half scale
Find fourth proportional to 35,112,825.60, 52,669,238.40 and 30,861,297.60
Double scale
Find fourth proportional to 17,556,413.80, 26,334,620.70 and 15,430,649.80
Similar ratio
Find fourth proportional to 26,334,619.20, 39,501,928.80 and 23,145,973.20
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.