Finding the Third Proportional to 84,135,790 and 129,242,877
Calculator
Solution
The third proportional to 84,135,790 and 129,242,877 is: 198,532,886.60
Step by Step Solution
- Step 1: Write the proportion equation
84,135,790 : 129,242,877 = 129,242,877 : x - Step 2: Convert to fraction form
84,135,790/129,242,877 = 129,242,877/x - Step 3: Cross multiply
84,135,790x = 129,242,877 × 129,242,877 - Step 4: Simplify right side
84,135,790x = 16,703,721,255,237,128 - Step 5: Solve for x
x = 16,703,721,255,237,128/84,135,790 - Step 6: Final answer
x = 198,532,886.60
Related Problems
Find third proportional to 42,067,895 and 64,621,438.50
Half scale
Find third proportional to 168,271,580 and 258,485,754
Double scale
Find third proportional to 84,135,792 and 129,242,880
Similar ratio
Find third proportional to 126,203,685 and 193,864,315.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.