Finding the Fourth Proportional to 7,142,754.36, 9,857,073.90 and 3,879,601.08
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Solution
The fourth proportional to 7,142,754.36, 9,857,073.90 and 3,879,601.08 is: 5,353,889.08
Step by Step Solution
- Step 1: Write the proportion equation
7,142,754.36 : 9,857,073.90 = 3,879,601.08 : x - Step 2: Convert to fraction form
7,142,754.36/9,857,073.90 = 3,879,601.08/x - Step 3: Cross multiply
7,142,754.36x = 9,857,073.90 × 3,879,601.08 - Step 4: Simplify right side
7,142,754.36x = 38,241,514,548,079.81 - Step 5: Solve for x
x = 38,241,514,548,079.81/7,142,754.36 - Step 6: Final answer
x = 5,353,889.08
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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.