Finding the Fourth Proportional to 726,379,668.18, 1,089,751,996.62 and 208,811,049.75
Calculator
Solution
The fourth proportional to 726,379,668.18, 1,089,751,996.62 and 208,811,049.75 is: 313,269,035.95
Step by Step Solution
- Step 1: Write the proportion equation
726,379,668.18 : 1,089,751,996.62 = 208,811,049.75 : x - Step 2: Convert to fraction form
726,379,668.18/1,089,751,996.62 = 208,811,049.75/x - Step 3: Cross multiply
726,379,668.18x = 1,089,751,996.62 × 208,811,049.75 - Step 4: Simplify right side
726,379,668.18x = 227,552,258,381,380,640 - Step 5: Solve for x
x = 227,552,258,381,380,640/726,379,668.18 - Step 6: Final answer
x = 313,269,035.95
Related Problems
Find fourth proportional to 363,189,834.09, 544,875,998.31 and 104,405,524.88
Half scale
Find fourth proportional to 1,452,759,336.36, 2,179,503,993.24 and 417,622,099.50
Double scale
Find fourth proportional to 726,379,669.18, 1,089,751,998.12 and 208,811,050.75
Similar ratio
Find fourth proportional to 1,089,569,502.27, 1,634,627,994.93 and 313,216,574.63
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.