Finding the Fourth Proportional to 7,320,921.36, 10,103,475.96 and 4,058,759.28
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Solution
The fourth proportional to 7,320,921.36, 10,103,475.96 and 4,058,759.28 is: 5,601,422.94
Step by Step Solution
- Step 1: Write the proportion equation
7,320,921.36 : 10,103,475.96 = 4,058,759.28 : x - Step 2: Convert to fraction form
7,320,921.36/10,103,475.96 = 4,058,759.28/x - Step 3: Cross multiply
7,320,921.36x = 10,103,475.96 × 4,058,759.28 - Step 4: Simplify right side
7,320,921.36x = 41,007,576,812,906.91 - Step 5: Solve for x
x = 41,007,576,812,906.91/7,320,921.36 - Step 6: Final answer
x = 5,601,422.94
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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.