Finding the Fourth Proportional to 18,662,863.20, 27,990,093.60 and 6,695,599.20
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Solution
The fourth proportional to 18,662,863.20, 27,990,093.60 and 6,695,599.20 is: 10,041,891.55
Step by Step Solution
- Step 1: Write the proportion equation
18,662,863.20 : 27,990,093.60 = 6,695,599.20 : x - Step 2: Convert to fraction form
18,662,863.20/27,990,093.60 = 6,695,599.20/x - Step 3: Cross multiply
18,662,863.20x = 27,990,093.60 × 6,695,599.20 - Step 4: Simplify right side
18,662,863.20x = 187,410,448,316,085.12 - Step 5: Solve for x
x = 187,410,448,316,085.12/18,662,863.20 - Step 6: Final answer
x = 10,041,891.55
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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.