Finding the Fourth Proportional to 5,212,916.52, 7,193,461.90 and 2,889,786.71
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Solution
The fourth proportional to 5,212,916.52, 7,193,461.90 and 2,889,786.71 is: 3,987,704.48
Step by Step Solution
- Step 1: Write the proportion equation
5,212,916.52 : 7,193,461.90 = 2,889,786.71 : x - Step 2: Convert to fraction form
5,212,916.52/7,193,461.90 = 2,889,786.71/x - Step 3: Cross multiply
5,212,916.52x = 7,193,461.90 × 2,889,786.71 - Step 4: Simplify right side
5,212,916.52x = 20,787,570,547,095.11 - Step 5: Solve for x
x = 20,787,570,547,095.11/5,212,916.52 - Step 6: Final answer
x = 3,987,704.48
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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.