Finding the Third Proportional to 7,657,646 and 11,855,715
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Solution
The third proportional to 7,657,646 and 11,855,715 is: 18,355,246.27
Step by Step Solution
- Step 1: Write the proportion equation
7,657,646 : 11,855,715 = 11,855,715 : x - Step 2: Convert to fraction form
7,657,646/11,855,715 = 11,855,715/x - Step 3: Cross multiply
7,657,646x = 11,855,715 × 11,855,715 - Step 4: Simplify right side
7,657,646x = 140,557,978,161,225 - Step 5: Solve for x
x = 140,557,978,161,225/7,657,646 - Step 6: Final answer
x = 18,355,246.27
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.