Finding the Fourth Proportional to 121,162,733.80, 167,217,736.62 and 74,751,794.44
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Solution
The fourth proportional to 121,162,733.80, 167,217,736.62 and 74,751,794.44 is: 103,165,597.89
Step by Step Solution
- Step 1: Write the proportion equation
121,162,733.80 : 167,217,736.62 = 74,751,794.44 : x - Step 2: Convert to fraction form
121,162,733.80/167,217,736.62 = 74,751,794.44/x - Step 3: Cross multiply
121,162,733.80x = 167,217,736.62 × 74,751,794.44 - Step 4: Simplify right side
121,162,733.80x = 12,499,825,874,540,300 - Step 5: Solve for x
x = 12,499,825,874,540,300/121,162,733.80 - Step 6: Final answer
x = 103,165,597.89
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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.