Finding the Fourth Proportional to 3,992,135.79, 5,509,141.91 and 2,273,256.26
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Solution
The fourth proportional to 3,992,135.79, 5,509,141.91 and 2,273,256.26 is: 3,137,090.51
Step by Step Solution
- Step 1: Write the proportion equation
3,992,135.79 : 5,509,141.91 = 2,273,256.26 : x - Step 2: Convert to fraction form
3,992,135.79/5,509,141.91 = 2,273,256.26/x - Step 3: Cross multiply
3,992,135.79x = 5,509,141.91 × 2,273,256.26 - Step 4: Simplify right side
3,992,135.79x = 12,523,691,306,590.15 - Step 5: Solve for x
x = 12,523,691,306,590.15/3,992,135.79 - Step 6: Final answer
x = 3,137,090.51
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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.