Finding the Third Proportional to 84,135,786 and 129,242,868.75
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Solution
The third proportional to 84,135,786 and 129,242,868.75 is: 198,532,870.69
Step by Step Solution
- Step 1: Write the proportion equation
84,135,786 : 129,242,868.75 = 129,242,868.75 : x - Step 2: Convert to fraction form
84,135,786/129,242,868.75 = 129,242,868.75/x - Step 3: Cross multiply
84,135,786x = 129,242,868.75 × 129,242,868.75 - Step 4: Simplify right side
84,135,786x = 16,703,719,122,729,726 - Step 5: Solve for x
x = 16,703,719,122,729,726/84,135,786 - Step 6: Final answer
x = 198,532,870.69
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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.