Finding the Fourth Proportional to 15,285,174.14, 21,093,707.55 and 8,315,891.31
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Solution
The fourth proportional to 15,285,174.14, 21,093,707.55 and 8,315,891.31 is: 11,476,021.00
Step by Step Solution
- Step 1: Write the proportion equation
15,285,174.14 : 21,093,707.55 = 8,315,891.31 : x - Step 2: Convert to fraction form
15,285,174.14/21,093,707.55 = 8,315,891.31/x - Step 3: Cross multiply
15,285,174.14x = 21,093,707.55 × 8,315,891.31 - Step 4: Simplify right side
15,285,174.14x = 175,412,979,310,726.38 - Step 5: Solve for x
x = 175,412,979,310,726.38/15,285,174.14 - Step 6: Final answer
x = 11,476,021.00
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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.