Finding the Fourth Proportional to 18,406,356,207.80, 27,609,534,311.70 and 18,406,356,207.80
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Solution
The fourth proportional to 18,406,356,207.80, 27,609,534,311.70 and 18,406,356,207.80 is: 27,609,534,311.70
Step by Step Solution
- Step 1: Write the proportion equation
18,406,356,207.80 : 27,609,534,311.70 = 18,406,356,207.80 : x - Step 2: Convert to fraction form
18,406,356,207.80/27,609,534,311.70 = 18,406,356,207.80/x - Step 3: Cross multiply
18,406,356,207.80x = 27,609,534,311.70 × 18,406,356,207.80 - Step 4: Simplify right side
18,406,356,207.80x = 508,190,923,272,626,372,608 - Step 5: Solve for x
x = 508,190,923,272,626,372,608/18,406,356,207.80 - Step 6: Final answer
x = 27,609,534,311.70
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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.