Finding the Fourth Proportional to 3,747,743.16, 5,171,887.30 and 2,028,863.68
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Solution
The fourth proportional to 3,747,743.16, 5,171,887.30 and 2,028,863.68 is: 2,799,832.82
Step by Step Solution
- Step 1: Write the proportion equation
3,747,743.16 : 5,171,887.30 = 2,028,863.68 : x - Step 2: Convert to fraction form
3,747,743.16/5,171,887.30 = 2,028,863.68/x - Step 3: Cross multiply
3,747,743.16x = 5,171,887.30 × 2,028,863.68 - Step 4: Simplify right side
3,747,743.16x = 10,493,054,300,023.26 - Step 5: Solve for x
x = 10,493,054,300,023.26/3,747,743.16 - Step 6: Final answer
x = 2,799,832.82
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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.