Finding the Third Proportional to 399,941,072 and 623,294,328
Calculator
Solution
The third proportional to 399,941,072 and 623,294,328 is: 971,382,652.38
Step by Step Solution
- Step 1: Write the proportion equation
399,941,072 : 623,294,328 = 623,294,328 : x - Step 2: Convert to fraction form
399,941,072/623,294,328 = 623,294,328/x - Step 3: Cross multiply
399,941,072x = 623,294,328 × 623,294,328 - Step 4: Simplify right side
399,941,072x = 388,495,819,316,971,584 - Step 5: Solve for x
x = 388,495,819,316,971,584/399,941,072 - Step 6: Final answer
x = 971,382,652.38
Related Problems
Find third proportional to 199,970,536 and 311,647,164
Half scale
Find third proportional to 799,882,144 and 1,246,588,656
Double scale
Find third proportional to 399,941,074 and 623,294,331
Similar ratio
Find third proportional to 599,911,608 and 934,941,492
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.