Finding the Fourth Proportional to 17,989,228.96, 24,821,158.16 and 11,021,378.72
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Solution
The fourth proportional to 17,989,228.96, 24,821,158.16 and 11,021,378.72 is: 15,207,065.57
Step by Step Solution
- Step 1: Write the proportion equation
17,989,228.96 : 24,821,158.16 = 11,021,378.72 : x - Step 2: Convert to fraction form
17,989,228.96/24,821,158.16 = 11,021,378.72/x - Step 3: Cross multiply
17,989,228.96x = 24,821,158.16 × 11,021,378.72 - Step 4: Simplify right side
17,989,228.96x = 273,563,384,350,378.38 - Step 5: Solve for x
x = 273,563,384,350,378.38/17,989,228.96 - Step 6: Final answer
x = 15,207,065.57
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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.