Finding the Fourth Proportional to 3,925,431.36, 5,417,125.20 and 2,183,125.12
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Solution
The fourth proportional to 3,925,431.36, 5,417,125.20 and 2,183,125.12 is: 3,012,729.31
Step by Step Solution
- Step 1: Write the proportion equation
3,925,431.36 : 5,417,125.20 = 2,183,125.12 : x - Step 2: Convert to fraction form
3,925,431.36/5,417,125.20 = 2,183,125.12/x - Step 3: Cross multiply
3,925,431.36x = 5,417,125.20 × 2,183,125.12 - Step 4: Simplify right side
3,925,431.36x = 11,826,262,102,305.03 - Step 5: Solve for x
x = 11,826,262,102,305.03/3,925,431.36 - Step 6: Final answer
x = 3,012,729.31
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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.