Finding the Fourth Proportional to 359,578,135.20, 539,367,202.80 and 155,504,791.20
Calculator
Solution
The fourth proportional to 359,578,135.20, 539,367,202.80 and 155,504,791.20 is: 233,257,186.80
Step by Step Solution
- Step 1: Write the proportion equation
359,578,135.20 : 539,367,202.80 = 155,504,791.20 : x - Step 2: Convert to fraction form
359,578,135.20/539,367,202.80 = 155,504,791.20/x - Step 3: Cross multiply
359,578,135.20x = 539,367,202.80 × 155,504,791.20 - Step 4: Simplify right side
359,578,135.20x = 83,874,184,251,542,048 - Step 5: Solve for x
x = 83,874,184,251,542,048/359,578,135.20 - Step 6: Final answer
x = 233,257,186.80
Related Problems
Find fourth proportional to 179,789,067.60, 269,683,601.40 and 77,752,395.60
Half scale
Find fourth proportional to 719,156,270.40, 1,078,734,405.60 and 311,009,582.40
Double scale
Find fourth proportional to 359,578,136.20, 539,367,204.30 and 155,504,792.20
Similar ratio
Find fourth proportional to 539,367,202.80, 809,050,804.20 and 233,257,186.80
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.