Finding the Fourth Proportional to 7,558,287,430.45, 11,337,431,145.68 and 5,191,036,640.05
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Solution
The fourth proportional to 7,558,287,430.45, 11,337,431,145.68 and 5,191,036,640.05 is: 7,786,554,960.08
Step by Step Solution
- Step 1: Write the proportion equation
7,558,287,430.45 : 11,337,431,145.68 = 5,191,036,640.05 : x - Step 2: Convert to fraction form
7,558,287,430.45/11,337,431,145.68 = 5,191,036,640.05/x - Step 3: Cross multiply
7,558,287,430.45x = 11,337,431,145.68 × 5,191,036,640.05 - Step 4: Simplify right side
7,558,287,430.45x = 58,853,020,481,268,932,608 - Step 5: Solve for x
x = 58,853,020,481,268,932,608/7,558,287,430.45 - Step 6: Final answer
x = 7,786,554,960.08
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Double scale
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Similar ratio
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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.