Finding the Fourth Proportional to 3,779,078.46, 5,215,078.47 and 2,125,225.09
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Solution
The fourth proportional to 3,779,078.46, 5,215,078.47 and 2,125,225.09 is: 2,932,782.61
Step by Step Solution
- Step 1: Write the proportion equation
3,779,078.46 : 5,215,078.47 = 2,125,225.09 : x - Step 2: Convert to fraction form
3,779,078.46/5,215,078.47 = 2,125,225.09/x - Step 3: Cross multiply
3,779,078.46x = 5,215,078.47 × 2,125,225.09 - Step 4: Simplify right side
3,779,078.46x = 11,083,215,595,916.44 - Step 5: Solve for x
x = 11,083,215,595,916.44/3,779,078.46 - Step 6: Final answer
x = 2,932,782.61
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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.