Finding the Fourth Proportional to 15,285,183.54, 21,093,720.57 and 8,315,900.70
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Solution
The fourth proportional to 15,285,183.54, 21,093,720.57 and 8,315,900.70 is: 11,476,033.98
Step by Step Solution
- Step 1: Write the proportion equation
15,285,183.54 : 21,093,720.57 = 8,315,900.70 : x - Step 2: Convert to fraction form
15,285,183.54/21,093,720.57 = 8,315,900.70/x - Step 3: Cross multiply
15,285,183.54x = 21,093,720.57 × 8,315,900.70 - Step 4: Simplify right side
15,285,183.54x = 175,413,285,653,667.41 - Step 5: Solve for x
x = 175,413,285,653,667.41/15,285,183.54 - Step 6: Final answer
x = 11,476,033.98
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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.