Finding the Fourth Proportional to 21,344,213.07, 29,455,007.79 and 11,554,649.99
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Solution
The fourth proportional to 21,344,213.07, 29,455,007.79 and 11,554,649.99 is: 15,945,413.61
Step by Step Solution
- Step 1: Write the proportion equation
21,344,213.07 : 29,455,007.79 = 11,554,649.99 : x - Step 2: Convert to fraction form
21,344,213.07/29,455,007.79 = 11,554,649.99/x - Step 3: Cross multiply
21,344,213.07x = 29,455,007.79 × 11,554,649.99 - Step 4: Simplify right side
21,344,213.07x = 340,342,305,466,173.44 - Step 5: Solve for x
x = 340,342,305,466,173.44/21,344,213.07 - Step 6: Final answer
x = 15,945,413.61
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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.