Finding the Fourth Proportional to 3,927,932.70, 5,419,913.58 and 2,208,950.70
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Solution
The fourth proportional to 3,927,932.70, 5,419,913.58 and 2,208,950.70 is: 3,047,995.68
Step by Step Solution
- Step 1: Write the proportion equation
3,927,932.70 : 5,419,913.58 = 2,208,950.70 : x - Step 2: Convert to fraction form
3,927,932.70/5,419,913.58 = 2,208,950.70/x - Step 3: Cross multiply
3,927,932.70x = 5,419,913.58 × 2,208,950.70 - Step 4: Simplify right side
3,927,932.70x = 11,972,321,896,480.51 - Step 5: Solve for x
x = 11,972,321,896,480.51/3,927,932.70 - Step 6: Final answer
x = 3,047,995.68
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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.