Finding the Fourth Proportional to 3,992,138.29, 5,509,145.36 and 2,273,258.76
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Solution
The fourth proportional to 3,992,138.29, 5,509,145.36 and 2,273,258.76 is: 3,137,093.97
Step by Step Solution
- Step 1: Write the proportion equation
3,992,138.29 : 5,509,145.36 = 2,273,258.76 : x - Step 2: Convert to fraction form
3,992,138.29/5,509,145.36 = 2,273,258.76/x - Step 3: Cross multiply
3,992,138.29x = 5,509,145.36 × 2,273,258.76 - Step 4: Simplify right side
3,992,138.29x = 12,523,712,949,733.35 - Step 5: Solve for x
x = 12,523,712,949,733.35/3,992,138.29 - Step 6: Final answer
x = 3,137,093.97
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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.