Finding the Fourth Proportional to 121,133,035.55, 167,162,738.68 and 66,128,892.05
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Solution
The fourth proportional to 121,133,035.55, 167,162,738.68 and 66,128,892.05 is: 91,257,406.79
Step by Step Solution
- Step 1: Write the proportion equation
121,133,035.55 : 167,162,738.68 = 66,128,892.05 : x - Step 2: Convert to fraction form
121,133,035.55/167,162,738.68 = 66,128,892.05/x - Step 3: Cross multiply
121,133,035.55x = 167,162,738.68 × 66,128,892.05 - Step 4: Simplify right side
121,133,035.55x = 11,054,286,700,952,080 - Step 5: Solve for x
x = 11,054,286,700,952,080/121,133,035.55 - Step 6: Final answer
x = 91,257,406.79
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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.