Finding the Fourth Proportional to 204,207,668.48, 281,910,645.60 and 157,693,502.72
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Solution
The fourth proportional to 204,207,668.48, 281,910,645.60 and 157,693,502.72 is: 217,697,393.49
Step by Step Solution
- Step 1: Write the proportion equation
204,207,668.48 : 281,910,645.60 = 157,693,502.72 : x - Step 2: Convert to fraction form
204,207,668.48/281,910,645.60 = 157,693,502.72/x - Step 3: Cross multiply
204,207,668.48x = 281,910,645.60 × 157,693,502.72 - Step 4: Simplify right side
204,207,668.48x = 44,455,477,158,720,560 - Step 5: Solve for x
x = 44,455,477,158,720,560/204,207,668.48 - Step 6: Final answer
x = 217,697,393.49
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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.