Finding the Third Proportional to 78,646,502 and 122,110,474
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Solution
The third proportional to 78,646,502 and 122,110,474 is: 189,594,800.55
Step by Step Solution
- Step 1: Write the proportion equation
78,646,502 : 122,110,474 = 122,110,474 : x - Step 2: Convert to fraction form
78,646,502/122,110,474 = 122,110,474/x - Step 3: Cross multiply
78,646,502x = 122,110,474 × 122,110,474 - Step 4: Simplify right side
78,646,502x = 14,910,967,860,504,676 - Step 5: Solve for x
x = 14,910,967,860,504,676/78,646,502 - Step 6: Final answer
x = 189,594,800.55
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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.