Finding the Fourth Proportional to 3,888,034.84, 5,365,491.42 and 2,169,155.62
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Solution
The fourth proportional to 3,888,034.84, 5,365,491.42 and 2,169,155.62 is: 2,993,436.62
Step by Step Solution
- Step 1: Write the proportion equation
3,888,034.84 : 5,365,491.42 = 2,169,155.62 : x - Step 2: Convert to fraction form
3,888,034.84/5,365,491.42 = 2,169,155.62/x - Step 3: Cross multiply
3,888,034.84x = 5,365,491.42 × 2,169,155.62 - Step 4: Simplify right side
3,888,034.84x = 11,638,585,867,754.78 - Step 5: Solve for x
x = 11,638,585,867,754.78/3,888,034.84 - Step 6: Final answer
x = 2,993,436.62
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1.5x scale
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.