Finding the Fourth Proportional to 280,481,571.96, 387,066,514.88 and 156,727,465.08
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Solution
The fourth proportional to 280,481,571.96, 387,066,514.88 and 156,727,465.08 is: 216,284,988.96
Step by Step Solution
- Step 1: Write the proportion equation
280,481,571.96 : 387,066,514.88 = 156,727,465.08 : x - Step 2: Convert to fraction form
280,481,571.96/387,066,514.88 = 156,727,465.08/x - Step 3: Cross multiply
280,481,571.96x = 387,066,514.88 × 156,727,465.08 - Step 4: Simplify right side
280,481,571.96x = 60,663,953,694,492,504 - Step 5: Solve for x
x = 60,663,953,694,492,504/280,481,571.96 - Step 6: Final answer
x = 216,284,988.96
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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.