Finding the Fourth Proportional to 168,086,632.21, 231,959,861.97 and 93,751,984.05
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Solution
The fourth proportional to 168,086,632.21, 231,959,861.97 and 93,751,984.05 is: 129,377,910.63
Step by Step Solution
- Step 1: Write the proportion equation
168,086,632.21 : 231,959,861.97 = 93,751,984.05 : x - Step 2: Convert to fraction form
168,086,632.21/231,959,861.97 = 93,751,984.05/x - Step 3: Cross multiply
168,086,632.21x = 231,959,861.97 × 93,751,984.05 - Step 4: Simplify right side
168,086,632.21x = 21,746,697,280,697,744 - Step 5: Solve for x
x = 21,746,697,280,697,744/168,086,632.21 - Step 6: Final answer
x = 129,377,910.63
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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.