Finding the Fourth Proportional to 5,122,166.55, 7,068,992.97 and 2,917,122.44
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Solution
The fourth proportional to 5,122,166.55, 7,068,992.97 and 2,917,122.44 is: 4,025,858.55
Step by Step Solution
- Step 1: Write the proportion equation
5,122,166.55 : 7,068,992.97 = 2,917,122.44 : x - Step 2: Convert to fraction form
5,122,166.55/7,068,992.97 = 2,917,122.44/x - Step 3: Cross multiply
5,122,166.55x = 7,068,992.97 × 2,917,122.44 - Step 4: Simplify right side
5,122,166.55x = 20,621,117,985,644.28 - Step 5: Solve for x
x = 20,621,117,985,644.28/5,122,166.55 - Step 6: Final answer
x = 4,025,858.55
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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.