Finding the Fourth Proportional to 3,878,427.27, 5,352,019.51 and 2,135,755.96
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Solution
The fourth proportional to 3,878,427.27, 5,352,019.51 and 2,135,755.96 is: 2,947,227.52
Step by Step Solution
- Step 1: Write the proportion equation
3,878,427.27 : 5,352,019.51 = 2,135,755.96 : x - Step 2: Convert to fraction form
3,878,427.27/5,352,019.51 = 2,135,755.96/x - Step 3: Cross multiply
3,878,427.27x = 5,352,019.51 × 2,135,755.96 - Step 4: Simplify right side
3,878,427.27x = 11,430,607,571,873.96 - Step 5: Solve for x
x = 11,430,607,571,873.96/3,878,427.27 - Step 6: Final answer
x = 2,947,227.52
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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.