Finding the Fourth Proportional to 3,212,923.99, 4,434,487.81 and 2,180,764.40
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Solution
The fourth proportional to 3,212,923.99, 4,434,487.81 and 2,180,764.40 is: 3,009,897.90
Step by Step Solution
- Step 1: Write the proportion equation
3,212,923.99 : 4,434,487.81 = 2,180,764.40 : x - Step 2: Convert to fraction form
3,212,923.99/4,434,487.81 = 2,180,764.40/x - Step 3: Cross multiply
3,212,923.99x = 4,434,487.81 × 2,180,764.40 - Step 4: Simplify right side
3,212,923.99x = 9,670,573,157,868.41 - Step 5: Solve for x
x = 9,670,573,157,868.41/3,212,923.99 - Step 6: Final answer
x = 3,009,897.90
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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.