Finding the Fourth Proportional to 3,854,797.70, 5,319,505.61 and 2,112,446.23
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Solution
The fourth proportional to 3,854,797.70, 5,319,505.61 and 2,112,446.23 is: 2,915,112.67
Step by Step Solution
- Step 1: Write the proportion equation
3,854,797.70 : 5,319,505.61 = 2,112,446.23 : x - Step 2: Convert to fraction form
3,854,797.70/5,319,505.61 = 2,112,446.23/x - Step 3: Cross multiply
3,854,797.70x = 5,319,505.61 × 2,112,446.23 - Step 4: Simplify right side
3,854,797.70x = 11,237,169,585,291.25 - Step 5: Solve for x
x = 11,237,169,585,291.25/3,854,797.70 - Step 6: Final answer
x = 2,915,112.67
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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.