Finding the Fourth Proportional to 167,661,403.49, 231,372,747.94 and 93,320,368.63
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Solution
The fourth proportional to 167,661,403.49, 231,372,747.94 and 93,320,368.63 is: 128,782,114.90
Step by Step Solution
- Step 1: Write the proportion equation
167,661,403.49 : 231,372,747.94 = 93,320,368.63 : x - Step 2: Convert to fraction form
167,661,403.49/231,372,747.94 = 93,320,368.63/x - Step 3: Cross multiply
167,661,403.49x = 231,372,747.94 × 93,320,368.63 - Step 4: Simplify right side
167,661,403.49x = 21,591,790,128,577,344 - Step 5: Solve for x
x = 21,591,790,128,577,344/167,661,403.49 - Step 6: Final answer
x = 128,782,114.90
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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.