Finding the Fourth Proportional to 11,913,208.20, 17,869,812.30 and 3,393,433.80
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Solution
The fourth proportional to 11,913,208.20, 17,869,812.30 and 3,393,433.80 is: 5,090,150.70
Step by Step Solution
- Step 1: Write the proportion equation
11,913,208.20 : 17,869,812.30 = 3,393,433.80 : x - Step 2: Convert to fraction form
11,913,208.20/17,869,812.30 = 3,393,433.80/x - Step 3: Cross multiply
11,913,208.20x = 17,869,812.30 × 3,393,433.80 - Step 4: Simplify right side
11,913,208.20x = 60,640,025,058,475.74 - Step 5: Solve for x
x = 60,640,025,058,475.74/11,913,208.20 - Step 6: Final answer
x = 5,090,150.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.