Finding the Fourth Proportional to 20,846,969.76, 31,274,587.92 and 6,469,423.92
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Solution
The fourth proportional to 20,846,969.76, 31,274,587.92 and 6,469,423.92 is: 9,705,418.56
Step by Step Solution
- Step 1: Write the proportion equation
20,846,969.76 : 31,274,587.92 = 6,469,423.92 : x - Step 2: Convert to fraction form
20,846,969.76/31,274,587.92 = 6,469,423.92/x - Step 3: Cross multiply
20,846,969.76x = 31,274,587.92 × 6,469,423.92 - Step 4: Simplify right side
20,846,969.76x = 202,328,567,177,791.06 - Step 5: Solve for x
x = 202,328,567,177,791.06/20,846,969.76 - Step 6: Final answer
x = 9,705,418.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.