Finding the Fourth Proportional to 414,079,519.20, 621,119,278.80 and 318,528,031.20
Calculator
Solution
The fourth proportional to 414,079,519.20, 621,119,278.80 and 318,528,031.20 is: 477,792,046.80
Step by Step Solution
- Step 1: Write the proportion equation
414,079,519.20 : 621,119,278.80 = 318,528,031.20 : x - Step 2: Convert to fraction form
414,079,519.20/621,119,278.80 = 318,528,031.20/x - Step 3: Cross multiply
414,079,519.20x = 621,119,278.80 × 318,528,031.20 - Step 4: Simplify right side
414,079,519.20x = 197,843,901,016,527,872 - Step 5: Solve for x
x = 197,843,901,016,527,872/414,079,519.20 - Step 6: Final answer
x = 477,792,046.80
Related Problems
Find fourth proportional to 207,039,759.60, 310,559,639.40 and 159,264,015.60
Half scale
Find fourth proportional to 828,159,038.40, 1,242,238,557.60 and 637,056,062.40
Double scale
Find fourth proportional to 414,079,520.20, 621,119,280.30 and 318,528,032.20
Similar ratio
Find fourth proportional to 621,119,278.80, 931,678,918.20 and 477,792,046.80
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.