Finding the Fourth Proportional to 18,378,528.90, 27,567,793.35 and 18,095,093.70
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Solution
The fourth proportional to 18,378,528.90, 27,567,793.35 and 18,095,093.70 is: 27,142,640.55
Step by Step Solution
- Step 1: Write the proportion equation
18,378,528.90 : 27,567,793.35 = 18,095,093.70 : x - Step 2: Convert to fraction form
18,378,528.90/27,567,793.35 = 18,095,093.70/x - Step 3: Cross multiply
18,378,528.90x = 27,567,793.35 × 18,095,093.70 - Step 4: Simplify right side
18,378,528.90x = 498,841,803,770,486.88 - Step 5: Solve for x
x = 498,841,803,770,486.88/18,378,528.90 - Step 6: Final answer
x = 27,142,640.55
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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.