Finding the Fourth Proportional to 18,192,341.20, 27,288,511.80 and 12,054,197.65
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Solution
The fourth proportional to 18,192,341.20, 27,288,511.80 and 12,054,197.65 is: 18,081,296.48
Step by Step Solution
- Step 1: Write the proportion equation
18,192,341.20 : 27,288,511.80 = 12,054,197.65 : x - Step 2: Convert to fraction form
18,192,341.20/27,288,511.80 = 12,054,197.65/x - Step 3: Cross multiply
18,192,341.20x = 27,288,511.80 × 12,054,197.65 - Step 4: Simplify right side
18,192,341.20x = 328,941,114,811,557.31 - Step 5: Solve for x
x = 328,941,114,811,557.31/18,192,341.20 - Step 6: Final answer
x = 18,081,296.48
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1.5x scale
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.