Finding the Fourth Proportional to 3,879,831.96, 5,354,588.97 and 2,137,680.18
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Solution
The fourth proportional to 3,879,831.96, 5,354,588.97 and 2,137,680.18 is: 2,950,230.53
Step by Step Solution
- Step 1: Write the proportion equation
3,879,831.96 : 5,354,588.97 = 2,137,680.18 : x - Step 2: Convert to fraction form
3,879,831.96/5,354,588.97 = 2,137,680.18/x - Step 3: Cross multiply
3,879,831.96x = 5,354,588.97 × 2,137,680.18 - Step 4: Simplify right side
3,879,831.96x = 11,446,398,713,215.62 - Step 5: Solve for x
x = 11,446,398,713,215.62/3,879,831.96 - Step 6: Final answer
x = 2,950,230.53
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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.