Finding the Fourth Proportional to 3,813,281.81, 5,261,048.49 and 2,159,202.84
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Solution
The fourth proportional to 3,813,281.81, 5,261,048.49 and 2,159,202.84 is: 2,978,974.91
Step by Step Solution
- Step 1: Write the proportion equation
3,813,281.81 : 5,261,048.49 = 2,159,202.84 : x - Step 2: Convert to fraction form
3,813,281.81/5,261,048.49 = 2,159,202.84/x - Step 3: Cross multiply
3,813,281.81x = 5,261,048.49 × 2,159,202.84 - Step 4: Simplify right side
3,813,281.81x = 11,359,670,829,353.79 - Step 5: Solve for x
x = 11,359,670,829,353.79/3,813,281.81 - Step 6: Final answer
x = 2,978,974.91
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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.