Finding the Fourth Proportional to 19,644,478.87, 27,109,995.49 and 11,273,380.09
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Solution
The fourth proportional to 19,644,478.87, 27,109,995.49 and 11,273,380.09 is: 15,557,617.25
Step by Step Solution
- Step 1: Write the proportion equation
19,644,478.87 : 27,109,995.49 = 11,273,380.09 : x - Step 2: Convert to fraction form
19,644,478.87/27,109,995.49 = 11,273,380.09/x - Step 3: Cross multiply
19,644,478.87x = 27,109,995.49 × 11,273,380.09 - Step 4: Simplify right side
19,644,478.87x = 305,621,283,396,955.75 - Step 5: Solve for x
x = 305,621,283,396,955.75/19,644,478.87 - Step 6: Final answer
x = 15,557,617.25
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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.