Finding the Fourth Proportional to 8,102,489.54, 11,181,278.42 and 4,431,394.74
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Solution
The fourth proportional to 8,102,489.54, 11,181,278.42 and 4,431,394.74 is: 6,115,238.81
Step by Step Solution
- Step 1: Write the proportion equation
8,102,489.54 : 11,181,278.42 = 4,431,394.74 : x - Step 2: Convert to fraction form
8,102,489.54/11,181,278.42 = 4,431,394.74/x - Step 3: Cross multiply
8,102,489.54x = 11,181,278.42 × 4,431,394.74 - Step 4: Simplify right side
8,102,489.54x = 49,548,658,438,180.66 - Step 5: Solve for x
x = 49,548,658,438,180.66/8,102,489.54 - Step 6: Final answer
x = 6,115,238.81
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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.