Finding the Fourth Proportional to 30,767,326.80, 42,471,984.42 and 19,170,619.98
Calculator
Solution
The fourth proportional to 30,767,326.80, 42,471,984.42 and 19,170,619.98 is: 26,463,601.42
Step by Step Solution
- Step 1: Write the proportion equation
30,767,326.80 : 42,471,984.42 = 19,170,619.98 : x - Step 2: Convert to fraction form
30,767,326.80/42,471,984.42 = 19,170,619.98/x - Step 3: Cross multiply
30,767,326.80x = 42,471,984.42 × 19,170,619.98 - Step 4: Simplify right side
30,767,326.80x = 814,214,273,112,300.75 - Step 5: Solve for x
x = 814,214,273,112,300.75/30,767,326.80 - Step 6: Final answer
x = 26,463,601.42
Related Problems
Find fourth proportional to 15,383,663.40, 21,235,992.21 and 9,585,309.99
Half scale
Find fourth proportional to 61,534,653.60, 84,943,968.84 and 38,341,239.96
Double scale
Find fourth proportional to 30,767,327.80, 42,471,985.80 and 19,170,620.98
Similar ratio
Find fourth proportional to 46,150,990.20, 63,707,976.63 and 28,755,929.97
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.