Finding the Fourth Proportional to 3,876,616.26, 5,349,730.66 and 2,157,699.87
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Solution
The fourth proportional to 3,876,616.26, 5,349,730.66 and 2,157,699.87 is: 2,977,625.94
Step by Step Solution
- Step 1: Write the proportion equation
3,876,616.26 : 5,349,730.66 = 2,157,699.87 : x - Step 2: Convert to fraction form
3,876,616.26/5,349,730.66 = 2,157,699.87/x - Step 3: Cross multiply
3,876,616.26x = 5,349,730.66 × 2,157,699.87 - Step 4: Simplify right side
3,876,616.26x = 11,543,113,144,222.76 - Step 5: Solve for x
x = 11,543,113,144,222.76/3,876,616.26 - Step 6: Final answer
x = 2,977,625.94
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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.