Finding the Fourth Proportional to 10,234,415.80, 15,351,623.70 and 2,661,381.55
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Solution
The fourth proportional to 10,234,415.80, 15,351,623.70 and 2,661,381.55 is: 3,992,072.33
Step by Step Solution
- Step 1: Write the proportion equation
10,234,415.80 : 15,351,623.70 = 2,661,381.55 : x - Step 2: Convert to fraction form
10,234,415.80/15,351,623.70 = 2,661,381.55/x - Step 3: Cross multiply
10,234,415.80x = 15,351,623.70 × 2,661,381.55 - Step 4: Simplify right side
10,234,415.80x = 40,856,528,077,722.73 - Step 5: Solve for x
x = 40,856,528,077,722.73/10,234,415.80 - Step 6: Final answer
x = 3,992,072.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.