Finding the Fourth Proportional to 4,212,854.44, 5,813,715.18 and 2,279,109.40
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Solution
The fourth proportional to 4,212,854.44, 5,813,715.18 and 2,279,109.40 is: 3,145,158.02
Step by Step Solution
- Step 1: Write the proportion equation
4,212,854.44 : 5,813,715.18 = 2,279,109.40 : x - Step 2: Convert to fraction form
4,212,854.44/5,813,715.18 = 2,279,109.40/x - Step 3: Cross multiply
4,212,854.44x = 5,813,715.18 × 2,279,109.40 - Step 4: Simplify right side
4,212,854.44x = 13,250,092,915,660.69 - Step 5: Solve for x
x = 13,250,092,915,660.69/4,212,854.44 - Step 6: Final answer
x = 3,145,158.02
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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.