Finding the Fourth Proportional to 12,994,912.73, 17,933,975.62 and 7,413,282.09
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Solution
The fourth proportional to 12,994,912.73, 17,933,975.62 and 7,413,282.09 is: 10,230,897.51
Step by Step Solution
- Step 1: Write the proportion equation
12,994,912.73 : 17,933,975.62 = 7,413,282.09 : x - Step 2: Convert to fraction form
12,994,912.73/17,933,975.62 = 7,413,282.09/x - Step 3: Cross multiply
12,994,912.73x = 17,933,975.62 × 7,413,282.09 - Step 4: Simplify right side
12,994,912.73x = 132,949,620,266,242.66 - Step 5: Solve for x
x = 132,949,620,266,242.66/12,994,912.73 - Step 6: Final answer
x = 10,230,897.51
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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.