Finding the Fourth Proportional to 4,279,137.21, 6,419,101.68 and 1,547,366.49
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Solution
The fourth proportional to 4,279,137.21, 6,419,101.68 and 1,547,366.49 is: 2,321,192.88
Step by Step Solution
- Step 1: Write the proportion equation
4,279,137.21 : 6,419,101.68 = 1,547,366.49 : x - Step 2: Convert to fraction form
4,279,137.21/6,419,101.68 = 1,547,366.49/x - Step 3: Cross multiply
4,279,137.21x = 6,419,101.68 × 1,547,366.49 - Step 4: Simplify right side
4,279,137.21x = 9,932,702,835,534.70 - Step 5: Solve for x
x = 9,932,702,835,534.70/4,279,137.21 - Step 6: Final answer
x = 2,321,192.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.