Finding the Third Proportional to 7,420,821.75 and 11,351,920.50
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Solution
The third proportional to 7,420,821.75 and 11,351,920.50 is: 17,365,475.60
Step by Step Solution
- Step 1: Write the proportion equation
7,420,821.75 : 11,351,920.50 = 11,351,920.50 : x - Step 2: Convert to fraction form
7,420,821.75/11,351,920.50 = 11,351,920.50/x - Step 3: Cross multiply
7,420,821.75x = 11,351,920.50 × 11,351,920.50 - Step 4: Simplify right side
7,420,821.75x = 128,866,099,038,320.25 - Step 5: Solve for x
x = 128,866,099,038,320.25/7,420,821.75 - Step 6: Final answer
x = 17,365,475.60
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.