Finding the Fourth Proportional to 3,934,942.29, 5,430,076.99 and 2,192,521.65
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Solution
The fourth proportional to 3,934,942.29, 5,430,076.99 and 2,192,521.65 is: 3,025,599.99
Step by Step Solution
- Step 1: Write the proportion equation
3,934,942.29 : 5,430,076.99 = 2,192,521.65 : x - Step 2: Convert to fraction form
3,934,942.29/5,430,076.99 = 2,192,521.65/x - Step 3: Cross multiply
3,934,942.29x = 5,430,076.99 × 2,192,521.65 - Step 4: Simplify right side
3,934,942.29x = 11,905,561,361,741.83 - Step 5: Solve for x
x = 11,905,561,361,741.83/3,934,942.29 - Step 6: Final answer
x = 3,025,599.99
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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.