Finding the Fourth Proportional to 7,515,543.70, 11,273,183.61 and 5,207,908.78
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Solution
The fourth proportional to 7,515,543.70, 11,273,183.61 and 5,207,908.78 is: 7,811,771.74
Step by Step Solution
- Step 1: Write the proportion equation
7,515,543.70 : 11,273,183.61 = 5,207,908.78 : x - Step 2: Convert to fraction form
7,515,543.70/11,273,183.61 = 5,207,908.78/x - Step 3: Cross multiply
7,515,543.70x = 11,273,183.61 × 5,207,908.78 - Step 4: Simplify right side
7,515,543.70x = 58,709,711,901,071.09 - Step 5: Solve for x
x = 58,709,711,901,071.09/7,515,543.70 - Step 6: Final answer
x = 7,811,771.74
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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.