Finding the Fourth Proportional to 4,981,866.48, 6,874,945.20 and 2,807,110.08
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Solution
The fourth proportional to 4,981,866.48, 6,874,945.20 and 2,807,110.08 is: 3,873,794.70
Step by Step Solution
- Step 1: Write the proportion equation
4,981,866.48 : 6,874,945.20 = 2,807,110.08 : x - Step 2: Convert to fraction form
4,981,866.48/6,874,945.20 = 2,807,110.08/x - Step 3: Cross multiply
4,981,866.48x = 6,874,945.20 × 2,807,110.08 - Step 4: Simplify right side
4,981,866.48x = 19,298,727,970,367.62 - Step 5: Solve for x
x = 19,298,727,970,367.62/4,981,866.48 - Step 6: Final answer
x = 3,873,794.70
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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.