Finding the Fourth Proportional to 3,925,865.80, 5,421,825.21 and 3,497,916.48
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Solution
The fourth proportional to 3,925,865.80, 5,421,825.21 and 3,497,916.48 is: 4,830,804.90
Step by Step Solution
- Step 1: Write the proportion equation
3,925,865.80 : 5,421,825.21 = 3,497,916.48 : x - Step 2: Convert to fraction form
3,925,865.80/5,421,825.21 = 3,497,916.48/x - Step 3: Cross multiply
3,925,865.80x = 5,421,825.21 × 3,497,916.48 - Step 4: Simplify right side
3,925,865.80x = 18,965,091,753,738.46 - Step 5: Solve for x
x = 18,965,091,753,738.46/3,925,865.80 - Step 6: Final answer
x = 4,830,804.90
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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.