Finding the Fourth Proportional to 31,864,578.53, 43,965,560.09 and 18,112,460.09
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Solution
The fourth proportional to 31,864,578.53, 43,965,560.09 and 18,112,460.09 is: 24,990,898.65
Step by Step Solution
- Step 1: Write the proportion equation
31,864,578.53 : 43,965,560.09 = 18,112,460.09 : x - Step 2: Convert to fraction form
31,864,578.53/43,965,560.09 = 18,112,460.09/x - Step 3: Cross multiply
31,864,578.53x = 43,965,560.09 × 18,112,460.09 - Step 4: Simplify right side
31,864,578.53x = 796,324,452,290,075.25 - Step 5: Solve for x
x = 796,324,452,290,075.25/31,864,578.53 - Step 6: Final answer
x = 24,990,898.65
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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.