Finding the Third Proportional to 258,942,876 and 394,877,325
Calculator
Solution
The third proportional to 258,942,876 and 394,877,325 is: 602,171,815.68
Step by Step Solution
- Step 1: Write the proportion equation
258,942,876 : 394,877,325 = 394,877,325 : x - Step 2: Convert to fraction form
258,942,876/394,877,325 = 394,877,325/x - Step 3: Cross multiply
258,942,876x = 394,877,325 × 394,877,325 - Step 4: Simplify right side
258,942,876x = 155,928,101,799,155,616 - Step 5: Solve for x
x = 155,928,101,799,155,616/258,942,876 - Step 6: Final answer
x = 602,171,815.68
Related Problems
Find third proportional to 129,471,438 and 197,438,662.50
Half scale
Find third proportional to 517,885,752 and 789,754,650
Double scale
Find third proportional to 258,942,878 and 394,877,328
Similar ratio
Find third proportional to 388,414,314 and 592,315,987.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.