Finding the Fourth Proportional to 4,261,135.20, 6,391,702.80 and 3,141,391.20
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Solution
The fourth proportional to 4,261,135.20, 6,391,702.80 and 3,141,391.20 is: 4,712,086.80
Step by Step Solution
- Step 1: Write the proportion equation
4,261,135.20 : 6,391,702.80 = 3,141,391.20 : x - Step 2: Convert to fraction form
4,261,135.20/6,391,702.80 = 3,141,391.20/x - Step 3: Cross multiply
4,261,135.20x = 6,391,702.80 × 3,141,391.20 - Step 4: Simplify right side
4,261,135.20x = 20,078,838,928,935.36 - Step 5: Solve for x
x = 20,078,838,928,935.36/4,261,135.20 - Step 6: Final answer
x = 4,712,086.80
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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.