Finding the Third Proportional to 189,378,686 and 407,520,796
Calculator
Solution
The third proportional to 189,378,686 and 407,520,796 is: 876,937,118.32
Step by Step Solution
- Step 1: Write the proportion equation
189,378,686 : 407,520,796 = 407,520,796 : x - Step 2: Convert to fraction form
189,378,686/407,520,796 = 407,520,796/x - Step 3: Cross multiply
189,378,686x = 407,520,796 × 407,520,796 - Step 4: Simplify right side
189,378,686x = 166,073,199,172,473,600 - Step 5: Solve for x
x = 166,073,199,172,473,600/189,378,686 - Step 6: Final answer
x = 876,937,118.32
Related Problems
Find third proportional to 94,689,343 and 203,760,398
Half scale
Find third proportional to 378,757,372 and 815,041,592
Double scale
Find third proportional to 189,378,688 and 407,520,800
Similar ratio
Find third proportional to 284,068,029 and 611,281,194
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.