Finding the Fourth Proportional to 13,260,658.56, 18,298,071.84 and 8,364,031.12
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Solution
The fourth proportional to 13,260,658.56, 18,298,071.84 and 8,364,031.12 is: 11,541,330.44
Step by Step Solution
- Step 1: Write the proportion equation
13,260,658.56 : 18,298,071.84 = 8,364,031.12 : x - Step 2: Convert to fraction form
13,260,658.56/18,298,071.84 = 8,364,031.12/x - Step 3: Cross multiply
13,260,658.56x = 18,298,071.84 × 8,364,031.12 - Step 4: Simplify right side
13,260,658.56x = 153,045,642,305,755.66 - Step 5: Solve for x
x = 153,045,642,305,755.66/13,260,658.56 - Step 6: Final answer
x = 11,541,330.44
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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.