Finding the Fourth Proportional to 12,159,738.18, 18,236,741.96 and 4,479,212.26
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Solution
The fourth proportional to 12,159,738.18, 18,236,741.96 and 4,479,212.26 is: 6,717,762.91
Step by Step Solution
- Step 1: Write the proportion equation
12,159,738.18 : 18,236,741.96 = 4,479,212.26 : x - Step 2: Convert to fraction form
12,159,738.18/18,236,741.96 = 4,479,212.26/x - Step 3: Cross multiply
12,159,738.18x = 18,236,741.96 × 4,479,212.26 - Step 4: Simplify right side
12,159,738.18x = 81,686,238,169,688.42 - Step 5: Solve for x
x = 81,686,238,169,688.42/12,159,738.18 - Step 6: Final answer
x = 6,717,762.91
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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.