Finding the Fourth Proportional to 21,536,816.36, 29,720,806.74 and 11,747,260.04
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Solution
The fourth proportional to 21,536,816.36, 29,720,806.74 and 11,747,260.04 is: 16,211,218.94
Step by Step Solution
- Step 1: Write the proportion equation
21,536,816.36 : 29,720,806.74 = 11,747,260.04 : x - Step 2: Convert to fraction form
21,536,816.36/29,720,806.74 = 11,747,260.04/x - Step 3: Cross multiply
21,536,816.36x = 29,720,806.74 × 11,747,260.04 - Step 4: Simplify right side
21,536,816.36x = 349,138,045,224,760.62 - Step 5: Solve for x
x = 349,138,045,224,760.62/21,536,816.36 - Step 6: Final answer
x = 16,211,218.94
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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.