Finding the Fourth Proportional to 5,212,247.54, 7,192,896.78 and 2,920,424.62
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Solution
The fourth proportional to 5,212,247.54, 7,192,896.78 and 2,920,424.62 is: 4,030,183.27
Step by Step Solution
- Step 1: Write the proportion equation
5,212,247.54 : 7,192,896.78 = 2,920,424.62 : x - Step 2: Convert to fraction form
5,212,247.54/7,192,896.78 = 2,920,424.62/x - Step 3: Cross multiply
5,212,247.54x = 7,192,896.78 × 2,920,424.62 - Step 4: Simplify right side
5,212,247.54x = 21,006,312,845,430.73 - Step 5: Solve for x
x = 21,006,312,845,430.73/5,212,247.54 - Step 6: Final answer
x = 4,030,183.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.