Finding the Fourth Proportional to 121,370,112.42, 167,489,222.49 and 66,365,837.70
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Solution
The fourth proportional to 121,370,112.42, 167,489,222.49 and 66,365,837.70 is: 91,584,017.96
Step by Step Solution
- Step 1: Write the proportion equation
121,370,112.42 : 167,489,222.49 = 66,365,837.70 : x - Step 2: Convert to fraction form
121,370,112.42/167,489,222.49 = 66,365,837.70/x - Step 3: Cross multiply
121,370,112.42x = 167,489,222.49 × 66,365,837.70 - Step 4: Simplify right side
121,370,112.42x = 11,115,562,556,270,532 - Step 5: Solve for x
x = 11,115,562,556,270,532/121,370,112.42 - Step 6: Final answer
x = 91,584,017.96
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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.