Finding the Fourth Proportional to 11,481,382.16, 17,201,069.40 and 5,421,119.12
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Solution
The fourth proportional to 11,481,382.16, 17,201,069.40 and 5,421,119.12 is: 8,121,761.38
Step by Step Solution
- Step 1: Write the proportion equation
11,481,382.16 : 17,201,069.40 = 5,421,119.12 : x - Step 2: Convert to fraction form
11,481,382.16/17,201,069.40 = 5,421,119.12/x - Step 3: Cross multiply
11,481,382.16x = 17,201,069.40 × 5,421,119.12 - Step 4: Simplify right side
11,481,382.16x = 93,249,046,208,786.92 - Step 5: Solve for x
x = 93,249,046,208,786.92/11,481,382.16 - Step 6: Final answer
x = 8,121,761.38
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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.