Finding the Fourth Proportional to 5,137,990.09, 7,090,121.46 and 2,814,418.09
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Solution
The fourth proportional to 5,137,990.09, 7,090,121.46 and 2,814,418.09 is: 3,883,729.97
Step by Step Solution
- Step 1: Write the proportion equation
5,137,990.09 : 7,090,121.46 = 2,814,418.09 : x - Step 2: Convert to fraction form
5,137,990.09/7,090,121.46 = 2,814,418.09/x - Step 3: Cross multiply
5,137,990.09x = 7,090,121.46 × 2,814,418.09 - Step 4: Simplify right side
5,137,990.09x = 19,954,566,097,321.21 - Step 5: Solve for x
x = 19,954,566,097,321.21/5,137,990.09 - Step 6: Final answer
x = 3,883,729.97
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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.