Finding the Fourth Proportional to 213,536,909.80, 320,305,364.70 and 213,536,909.80
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Solution
The fourth proportional to 213,536,909.80, 320,305,364.70 and 213,536,909.80 is: 320,305,364.70
Step by Step Solution
- Step 1: Write the proportion equation
213,536,909.80 : 320,305,364.70 = 213,536,909.80 : x - Step 2: Convert to fraction form
213,536,909.80/320,305,364.70 = 213,536,909.80/x - Step 3: Cross multiply
213,536,909.80x = 320,305,364.70 × 213,536,909.80 - Step 4: Simplify right side
213,536,909.80x = 68,397,017,770,400,008 - Step 5: Solve for x
x = 68,397,017,770,400,008/213,536,909.80 - Step 6: Final answer
x = 320,305,364.70
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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.