Finding the Fourth Proportional to 2,132,188.60, 3,194,135.70 and 1,288,233.40
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Solution
The fourth proportional to 2,132,188.60, 3,194,135.70 and 1,288,233.40 is: 1,929,844.43
Step by Step Solution
- Step 1: Write the proportion equation
2,132,188.60 : 3,194,135.70 = 1,288,233.40 : x - Step 2: Convert to fraction form
2,132,188.60/3,194,135.70 = 1,288,233.40/x - Step 3: Cross multiply
2,132,188.60x = 3,194,135.70 × 1,288,233.40 - Step 4: Simplify right side
2,132,188.60x = 4,114,792,292,872.38 - Step 5: Solve for x
x = 4,114,792,292,872.38/2,132,188.60 - Step 6: Final answer
x = 1,929,844.43
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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.