Finding the Fourth Proportional to 213,577,517.70, 294,783,074.16 and 129,972,585.09
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Solution
The fourth proportional to 213,577,517.70, 294,783,074.16 and 129,972,585.09 is: 179,390,221.41
Step by Step Solution
- Step 1: Write the proportion equation
213,577,517.70 : 294,783,074.16 = 129,972,585.09 : x - Step 2: Convert to fraction form
213,577,517.70/294,783,074.16 = 129,972,585.09/x - Step 3: Cross multiply
213,577,517.70x = 294,783,074.16 × 129,972,585.09 - Step 4: Simplify right side
213,577,517.70x = 38,313,718,189,873,824 - Step 5: Solve for x
x = 38,313,718,189,873,824/213,577,517.70 - Step 6: Final answer
x = 179,390,221.41
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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.