Finding the Fourth Proportional to 121,306,274.68, 167,400,189.54 and 66,302,524.84
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Solution
The fourth proportional to 121,306,274.68, 167,400,189.54 and 66,302,524.84 is: 91,496,134.51
Step by Step Solution
- Step 1: Write the proportion equation
121,306,274.68 : 167,400,189.54 = 66,302,524.84 : x - Step 2: Convert to fraction form
121,306,274.68/167,400,189.54 = 66,302,524.84/x - Step 3: Cross multiply
121,306,274.68x = 167,400,189.54 × 66,302,524.84 - Step 4: Simplify right side
121,306,274.68x = 11,099,055,225,196,558 - Step 5: Solve for x
x = 11,099,055,225,196,558/121,306,274.68 - Step 6: Final answer
x = 91,496,134.51
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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.