Finding the Fourth Proportional to 13,752,168.21, 18,973,853.49 and 8,243,533.14
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Solution
The fourth proportional to 13,752,168.21, 18,973,853.49 and 8,243,533.14 is: 11,373,594.88
Step by Step Solution
- Step 1: Write the proportion equation
13,752,168.21 : 18,973,853.49 = 8,243,533.14 : x - Step 2: Convert to fraction form
13,752,168.21/18,973,853.49 = 8,243,533.14/x - Step 3: Cross multiply
13,752,168.21x = 18,973,853.49 × 8,243,533.14 - Step 4: Simplify right side
13,752,168.21x = 156,411,589,902,232.72 - Step 5: Solve for x
x = 156,411,589,902,232.72/13,752,168.21 - Step 6: Final answer
x = 11,373,594.88
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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.