Finding the Third Proportional to 8,638,298 and 18,903,730
Calculator
Solution
The third proportional to 8,638,298 and 18,903,730 is: 41,368,219.52
Step by Step Solution
- Step 1: Write the proportion equation
8,638,298 : 18,903,730 = 18,903,730 : x - Step 2: Convert to fraction form
8,638,298/18,903,730 = 18,903,730/x - Step 3: Cross multiply
8,638,298x = 18,903,730 × 18,903,730 - Step 4: Simplify right side
8,638,298x = 357,351,007,912,900 - Step 5: Solve for x
x = 357,351,007,912,900/8,638,298 - Step 6: Final answer
x = 41,368,219.52
Related Problems
Find third proportional to 4,319,149 and 9,451,865
Half scale
Find third proportional to 17,276,596 and 37,807,460
Double scale
Find third proportional to 8,638,300 and 18,903,734
Similar ratio
Find third proportional to 12,957,447 and 28,355,595
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.