Finding the Fourth Proportional to 3,399,203.16, 4,690,760.49 and 1,947,888.09
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Solution
The fourth proportional to 3,399,203.16, 4,690,760.49 and 1,947,888.09 is: 2,688,005.41
Step by Step Solution
- Step 1: Write the proportion equation
3,399,203.16 : 4,690,760.49 = 1,947,888.09 : x - Step 2: Convert to fraction form
3,399,203.16/4,690,760.49 = 1,947,888.09/x - Step 3: Cross multiply
3,399,203.16x = 4,690,760.49 × 1,947,888.09 - Step 4: Simplify right side
3,399,203.16x = 9,137,076,491,513.57 - Step 5: Solve for x
x = 9,137,076,491,513.57/3,399,203.16 - Step 6: Final answer
x = 2,688,005.41
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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.