Finding the Fourth Proportional to 20,171,619.92, 27,833,028.36 and 12,023,616.08
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Solution
The fourth proportional to 20,171,619.92, 27,833,028.36 and 12,023,616.08 is: 16,590,320.89
Step by Step Solution
- Step 1: Write the proportion equation
20,171,619.92 : 27,833,028.36 = 12,023,616.08 : x - Step 2: Convert to fraction form
20,171,619.92/27,833,028.36 = 12,023,616.08/x - Step 3: Cross multiply
20,171,619.92x = 27,833,028.36 × 12,023,616.08 - Step 4: Simplify right side
20,171,619.92x = 334,653,647,344,392 - Step 5: Solve for x
x = 334,653,647,344,392/20,171,619.92 - Step 6: Final answer
x = 16,590,320.89
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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.