Finding the Fourth Proportional to 3,991,992.21, 5,509,001.84 and 2,273,119.56
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Solution
The fourth proportional to 3,991,992.21, 5,509,001.84 and 2,273,119.56 is: 3,136,934.94
Step by Step Solution
- Step 1: Write the proportion equation
3,991,992.21 : 5,509,001.84 = 2,273,119.56 : x - Step 2: Convert to fraction form
3,991,992.21/5,509,001.84 = 2,273,119.56/x - Step 3: Cross multiply
3,991,992.21x = 5,509,001.84 × 2,273,119.56 - Step 4: Simplify right side
3,991,992.21x = 12,522,619,827,214.39 - Step 5: Solve for x
x = 12,522,619,827,214.39/3,991,992.21 - Step 6: Final answer
x = 3,136,934.94
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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.