Finding the Fourth Proportional to 18,313,197.31, 27,448,899.68 and 7,376,386.88
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Solution
The fourth proportional to 18,313,197.31, 27,448,899.68 and 7,376,386.88 is: 11,056,163.49
Step by Step Solution
- Step 1: Write the proportion equation
18,313,197.31 : 27,448,899.68 = 7,376,386.88 : x - Step 2: Convert to fraction form
18,313,197.31/27,448,899.68 = 7,376,386.88/x - Step 3: Cross multiply
18,313,197.31x = 27,448,899.68 × 7,376,386.88 - Step 4: Simplify right side
18,313,197.31x = 202,473,703,454,118.06 - Step 5: Solve for x
x = 202,473,703,454,118.06/18,313,197.31 - Step 6: Final answer
x = 11,056,163.49
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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.