Finding the Fourth Proportional to 3,843,125.20, 5,302,970.92 and 2,189,315.80
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Solution
The fourth proportional to 3,843,125.20, 5,302,970.92 and 2,189,315.80 is: 3,020,947.12
Step by Step Solution
- Step 1: Write the proportion equation
3,843,125.20 : 5,302,970.92 = 2,189,315.80 : x - Step 2: Convert to fraction form
3,843,125.20/5,302,970.92 = 2,189,315.80/x - Step 3: Cross multiply
3,843,125.20x = 5,302,970.92 × 2,189,315.80 - Step 4: Simplify right side
3,843,125.20x = 11,609,878,022,096.54 - Step 5: Solve for x
x = 11,609,878,022,096.54/3,843,125.20 - Step 6: Final answer
x = 3,020,947.12
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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.