Finding the Fourth Proportional to 7,801,831.52, 11,699,836.92 and 2,682,813.44
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Solution
The fourth proportional to 7,801,831.52, 11,699,836.92 and 2,682,813.44 is: 4,023,219.38
Step by Step Solution
- Step 1: Write the proportion equation
7,801,831.52 : 11,699,836.92 = 2,682,813.44 : x - Step 2: Convert to fraction form
7,801,831.52/11,699,836.92 = 2,682,813.44/x - Step 3: Cross multiply
7,801,831.52x = 11,699,836.92 × 2,682,813.44 - Step 4: Simplify right side
7,801,831.52x = 31,388,479,734,784.20 - Step 5: Solve for x
x = 31,388,479,734,784.20/7,801,831.52 - Step 6: Final answer
x = 4,023,219.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.