Finding the Third Proportional to 138,420,531 and 300,605,874.75
Calculator
Solution
The third proportional to 138,420,531 and 300,605,874.75 is: 652,821,451.28
Step by Step Solution
- Step 1: Write the proportion equation
138,420,531 : 300,605,874.75 = 300,605,874.75 : x - Step 2: Convert to fraction form
138,420,531/300,605,874.75 = 300,605,874.75/x - Step 3: Cross multiply
138,420,531x = 300,605,874.75 × 300,605,874.75 - Step 4: Simplify right side
138,420,531x = 90,363,891,934,212,688 - Step 5: Solve for x
x = 90,363,891,934,212,688/138,420,531 - Step 6: Final answer
x = 652,821,451.28
Related Problems
Find third proportional to 69,210,265.50 and 150,302,937.38
Half scale
Find third proportional to 276,841,062 and 601,211,749.50
Double scale
Find third proportional to 138,420,533 and 300,605,879
Similar ratio
Find third proportional to 207,630,796.50 and 450,908,812.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.