Finding the Fourth Proportional to 4,192,128,817.80, 6,288,193,226.70 and 1,431,343,998.60
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Solution
The fourth proportional to 4,192,128,817.80, 6,288,193,226.70 and 1,431,343,998.60 is: 2,147,015,997.90
Step by Step Solution
- Step 1: Write the proportion equation
4,192,128,817.80 : 6,288,193,226.70 = 1,431,343,998.60 : x - Step 2: Convert to fraction form
4,192,128,817.80/6,288,193,226.70 = 1,431,343,998.60/x - Step 3: Cross multiply
4,192,128,817.80x = 6,288,193,226.70 × 1,431,343,998.60 - Step 4: Simplify right side
4,192,128,817.80x = 9,000,567,637,074,213,888 - Step 5: Solve for x
x = 9,000,567,637,074,213,888/4,192,128,817.80 - Step 6: Final answer
x = 2,147,015,997.90
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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.