Finding the Fourth Proportional to 3,918,752.73, 5,407,945.60 and 2,152,725.49
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Solution
The fourth proportional to 3,918,752.73, 5,407,945.60 and 2,152,725.49 is: 2,970,797.88
Step by Step Solution
- Step 1: Write the proportion equation
3,918,752.73 : 5,407,945.60 = 2,152,725.49 : x - Step 2: Convert to fraction form
3,918,752.73/5,407,945.60 = 2,152,725.49/x - Step 3: Cross multiply
3,918,752.73x = 5,407,945.60 × 2,152,725.49 - Step 4: Simplify right side
3,918,752.73x = 11,641,822,316,648.13 - Step 5: Solve for x
x = 11,641,822,316,648.13/3,918,752.73 - Step 6: Final answer
x = 2,970,797.88
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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.