Finding the Fourth Proportional to 7,940,578.03, 11,905,640.09 and 5,236,658.71
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Solution
The fourth proportional to 7,940,578.03, 11,905,640.09 and 5,236,658.71 is: 7,851,540.99
Step by Step Solution
- Step 1: Write the proportion equation
7,940,578.03 : 11,905,640.09 = 5,236,658.71 : x - Step 2: Convert to fraction form
7,940,578.03/11,905,640.09 = 5,236,658.71/x - Step 3: Cross multiply
7,940,578.03x = 11,905,640.09 × 5,236,658.71 - Step 4: Simplify right side
7,940,578.03x = 62,345,773,875,423.68 - Step 5: Solve for x
x = 62,345,773,875,423.68/7,940,578.03 - Step 6: Final answer
x = 7,851,540.99
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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.