Finding the Fourth Proportional to 8,135,428.20, 11,226,859.65 and 4,464,406.14
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Solution
The fourth proportional to 8,135,428.20, 11,226,859.65 and 4,464,406.14 is: 6,160,863.32
Step by Step Solution
- Step 1: Write the proportion equation
8,135,428.20 : 11,226,859.65 = 4,464,406.14 : x - Step 2: Convert to fraction form
8,135,428.20/11,226,859.65 = 4,464,406.14/x - Step 3: Cross multiply
8,135,428.20x = 11,226,859.65 × 4,464,406.14 - Step 4: Simplify right side
8,135,428.20x = 50,121,261,154,378.25 - Step 5: Solve for x
x = 50,121,261,154,378.25/8,135,428.20 - Step 6: Final answer
x = 6,160,863.32
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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.