Finding the Fourth Proportional to 7,996,116.42, 11,981,621.25 and 5,438,551.14
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Solution
The fourth proportional to 7,996,116.42, 11,981,621.25 and 5,438,551.14 is: 8,149,288.54
Step by Step Solution
- Step 1: Write the proportion equation
7,996,116.42 : 11,981,621.25 = 5,438,551.14 : x - Step 2: Convert to fraction form
7,996,116.42/11,981,621.25 = 5,438,551.14/x - Step 3: Cross multiply
7,996,116.42x = 11,981,621.25 × 5,438,551.14 - Step 4: Simplify right side
7,996,116.42x = 65,162,659,908,235.72 - Step 5: Solve for x
x = 65,162,659,908,235.72/7,996,116.42 - Step 6: Final answer
x = 8,149,288.54
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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.