Finding the Fourth Proportional to 7,381,481.80, 11,072,222.70 and 4,192,835.80
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Solution
The fourth proportional to 7,381,481.80, 11,072,222.70 and 4,192,835.80 is: 6,289,253.70
Step by Step Solution
- Step 1: Write the proportion equation
7,381,481.80 : 11,072,222.70 = 4,192,835.80 : x - Step 2: Convert to fraction form
7,381,481.80/11,072,222.70 = 4,192,835.80/x - Step 3: Cross multiply
7,381,481.80x = 11,072,222.70 × 4,192,835.80 - Step 4: Simplify right side
7,381,481.80x = 46,424,011,722,132.66 - Step 5: Solve for x
x = 46,424,011,722,132.66/7,381,481.80 - Step 6: Final answer
x = 6,289,253.70
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Double scale
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Similar ratio
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1.5x scale
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.