Finding the Fourth Proportional to 397,501,484.26, 548,570,152.70 and 221,300,670.68
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Solution
The fourth proportional to 397,501,484.26, 548,570,152.70 and 221,300,670.68 is: 305,405,004.80
Step by Step Solution
- Step 1: Write the proportion equation
397,501,484.26 : 548,570,152.70 = 221,300,670.68 : x - Step 2: Convert to fraction form
397,501,484.26/548,570,152.70 = 221,300,670.68/x - Step 3: Cross multiply
397,501,484.26x = 548,570,152.70 × 221,300,670.68 - Step 4: Simplify right side
397,501,484.26x = 121,398,942,707,540,032 - Step 5: Solve for x
x = 121,398,942,707,540,032/397,501,484.26 - Step 6: Final answer
x = 305,405,004.80
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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.