Finding the Fourth Proportional to 3,963,486.15, 5,469,276.96 and 2,197,431.70
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Solution
The fourth proportional to 3,963,486.15, 5,469,276.96 and 2,197,431.70 is: 3,032,270.61
Step by Step Solution
- Step 1: Write the proportion equation
3,963,486.15 : 5,469,276.96 = 2,197,431.70 : x - Step 2: Convert to fraction form
3,963,486.15/5,469,276.96 = 2,197,431.70/x - Step 3: Cross multiply
3,963,486.15x = 5,469,276.96 × 2,197,431.70 - Step 4: Simplify right side
3,963,486.15x = 12,018,362,554,310.44 - Step 5: Solve for x
x = 12,018,362,554,310.44/3,963,486.15 - Step 6: Final answer
x = 3,032,270.61
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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.