Finding the Fourth Proportional to 3,858,210.46, 5,324,569.78 and 2,139,330.98
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Solution
The fourth proportional to 3,858,210.46, 5,324,569.78 and 2,139,330.98 is: 2,952,409.46
Step by Step Solution
- Step 1: Write the proportion equation
3,858,210.46 : 5,324,569.78 = 2,139,330.98 : x - Step 2: Convert to fraction form
3,858,210.46/5,324,569.78 = 2,139,330.98/x - Step 3: Cross multiply
3,858,210.46x = 5,324,569.78 × 2,139,330.98 - Step 4: Simplify right side
3,858,210.46x = 11,391,017,074,829.13 - Step 5: Solve for x
x = 11,391,017,074,829.13/3,858,210.46 - Step 6: Final answer
x = 2,952,409.46
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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.