Finding the Fourth Proportional to 5,115,165.37, 7,057,874.47 and 2,939,288.14
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Solution
The fourth proportional to 5,115,165.37, 7,057,874.47 and 2,939,288.14 is: 4,055,612.14
Step by Step Solution
- Step 1: Write the proportion equation
5,115,165.37 : 7,057,874.47 = 2,939,288.14 : x - Step 2: Convert to fraction form
5,115,165.37/7,057,874.47 = 2,939,288.14/x - Step 3: Cross multiply
5,115,165.37x = 7,057,874.47 × 2,939,288.14 - Step 4: Simplify right side
5,115,165.37x = 20,745,126,748,559.10 - Step 5: Solve for x
x = 20,745,126,748,559.10/5,115,165.37 - Step 6: Final answer
x = 4,055,612.14
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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.