Finding the Fourth Proportional to 13,196,486.13, 18,204,679.43 and 11,451,706.65
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Solution
The fourth proportional to 13,196,486.13, 18,204,679.43 and 11,451,706.65 is: 15,797,739.36
Step by Step Solution
- Step 1: Write the proportion equation
13,196,486.13 : 18,204,679.43 = 11,451,706.65 : x - Step 2: Convert to fraction form
13,196,486.13/18,204,679.43 = 11,451,706.65/x - Step 3: Cross multiply
13,196,486.13x = 18,204,679.43 × 11,451,706.65 - Step 4: Simplify right side
13,196,486.13x = 208,474,648,398,625.81 - Step 5: Solve for x
x = 208,474,648,398,625.81/13,196,486.13 - Step 6: Final answer
x = 15,797,739.36
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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.