Finding the Fourth Proportional to 13,186,562.68, 18,197,215.64 and 7,306,175.42
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Solution
The fourth proportional to 13,186,562.68, 18,197,215.64 and 7,306,175.42 is: 10,082,388.63
Step by Step Solution
- Step 1: Write the proportion equation
13,186,562.68 : 18,197,215.64 = 7,306,175.42 : x - Step 2: Convert to fraction form
13,186,562.68/18,197,215.64 = 7,306,175.42/x - Step 3: Cross multiply
13,186,562.68x = 18,197,215.64 × 7,306,175.42 - Step 4: Simplify right side
13,186,562.68x = 132,952,049,621,407.58 - Step 5: Solve for x
x = 132,952,049,621,407.58/13,186,562.68 - Step 6: Final answer
x = 10,082,388.63
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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.