Finding the Fourth Proportional to 3,911,215.40, 5,397,726.68 and 2,192,336.36
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Solution
The fourth proportional to 3,911,215.40, 5,397,726.68 and 2,192,336.36 is: 3,025,563.99
Step by Step Solution
- Step 1: Write the proportion equation
3,911,215.40 : 5,397,726.68 = 2,192,336.36 : x - Step 2: Convert to fraction form
3,911,215.40/5,397,726.68 = 2,192,336.36/x - Step 3: Cross multiply
3,911,215.40x = 5,397,726.68 × 2,192,336.36 - Step 4: Simplify right side
3,911,215.40x = 11,833,632,461,906.08 - Step 5: Solve for x
x = 11,833,632,461,906.08/3,911,215.40 - Step 6: Final answer
x = 3,025,563.99
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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.