Finding the Fourth Proportional to 5,212,862.54, 7,193,750.15 and 2,889,749.17
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Solution
The fourth proportional to 5,212,862.54, 7,193,750.15 and 2,889,749.17 is: 3,987,853.77
Step by Step Solution
- Step 1: Write the proportion equation
5,212,862.54 : 7,193,750.15 = 2,889,749.17 : x - Step 2: Convert to fraction form
5,212,862.54/7,193,750.15 = 2,889,749.17/x - Step 3: Cross multiply
5,212,862.54x = 7,193,750.15 × 2,889,749.17 - Step 4: Simplify right side
5,212,862.54x = 20,788,133,492,716.75 - Step 5: Solve for x
x = 20,788,133,492,716.75/5,212,862.54 - Step 6: Final answer
x = 3,987,853.77
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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.