Finding the Fourth Proportional to 13,806,080.09, 20,715,220.32 and 7,239,220.82
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Solution
The fourth proportional to 13,806,080.09, 20,715,220.32 and 7,239,220.82 is: 10,862,029.86
Step by Step Solution
- Step 1: Write the proportion equation
13,806,080.09 : 20,715,220.32 = 7,239,220.82 : x - Step 2: Convert to fraction form
13,806,080.09/20,715,220.32 = 7,239,220.82/x - Step 3: Cross multiply
13,806,080.09x = 20,715,220.32 × 7,239,220.82 - Step 4: Simplify right side
13,806,080.09x = 149,962,054,231,431.06 - Step 5: Solve for x
x = 149,962,054,231,431.06/13,806,080.09 - Step 6: Final answer
x = 10,862,029.86
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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.