Finding the Fourth Proportional to 3,571,212.97, 4,927,507.18 and 2,121,397.21
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Solution
The fourth proportional to 3,571,212.97, 4,927,507.18 and 2,121,397.21 is: 2,927,072.70
Step by Step Solution
- Step 1: Write the proportion equation
3,571,212.97 : 4,927,507.18 = 2,121,397.21 : x - Step 2: Convert to fraction form
3,571,212.97/4,927,507.18 = 2,121,397.21/x - Step 3: Cross multiply
3,571,212.97x = 4,927,507.18 × 2,121,397.21 - Step 4: Simplify right side
3,571,212.97x = 10,453,199,983,906.97 - Step 5: Solve for x
x = 10,453,199,983,906.97/3,571,212.97 - Step 6: Final answer
x = 2,927,072.70
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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.