Finding the Fourth Proportional to 3,879,352.07, 5,353,671.94 and 2,160,472.58
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Solution
The fourth proportional to 3,879,352.07, 5,353,671.94 and 2,160,472.58 is: 2,981,544.66
Step by Step Solution
- Step 1: Write the proportion equation
3,879,352.07 : 5,353,671.94 = 2,160,472.58 : x - Step 2: Convert to fraction form
3,879,352.07/5,353,671.94 = 2,160,472.58/x - Step 3: Cross multiply
3,879,352.07x = 5,353,671.94 × 2,160,472.58 - Step 4: Simplify right side
3,879,352.07x = 11,566,461,452,782.87 - Step 5: Solve for x
x = 11,566,461,452,782.87/3,879,352.07 - Step 6: Final answer
x = 2,981,544.66
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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.