Finding the Fourth Proportional to 5,239,613.72, 7,230,665.82 and 2,916,456.14
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Solution
The fourth proportional to 5,239,613.72, 7,230,665.82 and 2,916,456.14 is: 4,024,708.85
Step by Step Solution
- Step 1: Write the proportion equation
5,239,613.72 : 7,230,665.82 = 2,916,456.14 : x - Step 2: Convert to fraction form
5,239,613.72/7,230,665.82 = 2,916,456.14/x - Step 3: Cross multiply
5,239,613.72x = 7,230,665.82 × 2,916,456.14 - Step 4: Simplify right side
5,239,613.72x = 21,087,919,727,027.14 - Step 5: Solve for x
x = 21,087,919,727,027.14/5,239,613.72 - Step 6: Final answer
x = 4,024,708.85
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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.