Finding the Fourth Proportional to 5,228,744.70, 7,841,353.79 and 1,989,513.39
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Solution
The fourth proportional to 5,228,744.70, 7,841,353.79 and 1,989,513.39 is: 2,983,599.17
Step by Step Solution
- Step 1: Write the proportion equation
5,228,744.70 : 7,841,353.79 = 1,989,513.39 : x - Step 2: Convert to fraction form
5,228,744.70/7,841,353.79 = 1,989,513.39/x - Step 3: Cross multiply
5,228,744.70x = 7,841,353.79 × 1,989,513.39 - Step 4: Simplify right side
5,228,744.70x = 15,600,478,384,120.10 - Step 5: Solve for x
x = 15,600,478,384,120.10/5,228,744.70 - Step 6: Final answer
x = 2,983,599.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.