Finding the Third Proportional to 405,487,751 and 628,153,771
Calculator
Solution
The third proportional to 405,487,751 and 628,153,771 is: 973,092,674.31
Step by Step Solution
- Step 1: Write the proportion equation
405,487,751 : 628,153,771 = 628,153,771 : x - Step 2: Convert to fraction form
405,487,751/628,153,771 = 628,153,771/x - Step 3: Cross multiply
405,487,751x = 628,153,771 × 628,153,771 - Step 4: Simplify right side
405,487,751x = 394,577,160,021,520,448 - Step 5: Solve for x
x = 394,577,160,021,520,448/405,487,751 - Step 6: Final answer
x = 973,092,674.31
Related Problems
Find third proportional to 202,743,875.50 and 314,076,885.50
Half scale
Find third proportional to 810,975,502 and 1,256,307,542
Double scale
Find third proportional to 405,487,753 and 628,153,774
Similar ratio
Find third proportional to 608,231,626.50 and 942,230,656.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.