Finding the Fourth Proportional to 15,222,716.19, 20,987,026.43 and 12,093,362.96
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Solution
The fourth proportional to 15,222,716.19, 20,987,026.43 and 12,093,362.96 is: 16,672,696.56
Step by Step Solution
- Step 1: Write the proportion equation
15,222,716.19 : 20,987,026.43 = 12,093,362.96 : x - Step 2: Convert to fraction form
15,222,716.19/20,987,026.43 = 12,093,362.96/x - Step 3: Cross multiply
15,222,716.19x = 20,987,026.43 × 12,093,362.96 - Step 4: Simplify right side
15,222,716.19x = 253,803,727,903,701.09 - Step 5: Solve for x
x = 253,803,727,903,701.09/15,222,716.19 - Step 6: Final answer
x = 16,672,696.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.