Finding the Fourth Proportional to 7,463,845.20, 11,201,672.70 and 2,917,072.20
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Solution
The fourth proportional to 7,463,845.20, 11,201,672.70 and 2,917,072.20 is: 4,377,916.09
Step by Step Solution
- Step 1: Write the proportion equation
7,463,845.20 : 11,201,672.70 = 2,917,072.20 : x - Step 2: Convert to fraction form
7,463,845.20/11,201,672.70 = 2,917,072.20/x - Step 3: Cross multiply
7,463,845.20x = 11,201,672.70 × 2,917,072.20 - Step 4: Simplify right side
7,463,845.20x = 32,676,088,026,668.94 - Step 5: Solve for x
x = 32,676,088,026,668.94/7,463,845.20 - Step 6: Final answer
x = 4,377,916.09
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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.