Finding the Third Proportional to 129,205,902 and 198,598,383
Calculator
Solution
The third proportional to 129,205,902 and 198,598,383 is: 305,259,412.45
Step by Step Solution
- Step 1: Write the proportion equation
129,205,902 : 198,598,383 = 198,598,383 : x - Step 2: Convert to fraction form
129,205,902/198,598,383 = 198,598,383/x - Step 3: Cross multiply
129,205,902x = 198,598,383 × 198,598,383 - Step 4: Simplify right side
129,205,902x = 39,441,317,730,214,688 - Step 5: Solve for x
x = 39,441,317,730,214,688/129,205,902 - Step 6: Final answer
x = 305,259,412.45
Related Problems
Find third proportional to 64,602,951 and 99,299,191.50
Half scale
Find third proportional to 258,411,804 and 397,196,766
Double scale
Find third proportional to 129,205,904 and 198,598,386
Similar ratio
Find third proportional to 193,808,853 and 297,897,574.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.