Finding the Fourth Proportional to 186,782,138.60, 280,173,207.90 and 65,613,590.60
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Solution
The fourth proportional to 186,782,138.60, 280,173,207.90 and 65,613,590.60 is: 98,420,385.90
Step by Step Solution
- Step 1: Write the proportion equation
186,782,138.60 : 280,173,207.90 = 65,613,590.60 : x - Step 2: Convert to fraction form
186,782,138.60/280,173,207.90 = 65,613,590.60/x - Step 3: Cross multiply
186,782,138.60x = 280,173,207.90 × 65,613,590.60 - Step 4: Simplify right side
186,782,138.60x = 18,383,170,160,239,284 - Step 5: Solve for x
x = 18,383,170,160,239,284/186,782,138.60 - Step 6: Final answer
x = 98,420,385.90
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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.