Finding the Fourth Proportional to 5,112,982.08, 7,055,910.36 and 2,821,142.88
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Solution
The fourth proportional to 5,112,982.08, 7,055,910.36 and 2,821,142.88 is: 3,893,174.47
Step by Step Solution
- Step 1: Write the proportion equation
5,112,982.08 : 7,055,910.36 = 2,821,142.88 : x - Step 2: Convert to fraction form
5,112,982.08/7,055,910.36 = 2,821,142.88/x - Step 3: Cross multiply
5,112,982.08x = 7,055,910.36 × 2,821,142.88 - Step 4: Simplify right side
5,112,982.08x = 19,905,731,274,032.24 - Step 5: Solve for x
x = 19,905,731,274,032.24/5,112,982.08 - Step 6: Final answer
x = 3,893,174.47
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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.