Finding the Fourth Proportional to 80,640,156.30, 120,960,234.45 and 73,625,135.10
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Solution
The fourth proportional to 80,640,156.30, 120,960,234.45 and 73,625,135.10 is: 110,437,702.65
Step by Step Solution
- Step 1: Write the proportion equation
80,640,156.30 : 120,960,234.45 = 73,625,135.10 : x - Step 2: Convert to fraction form
80,640,156.30/120,960,234.45 = 73,625,135.10/x - Step 3: Cross multiply
80,640,156.30x = 120,960,234.45 × 73,625,135.10 - Step 4: Simplify right side
80,640,156.30x = 8,905,713,603,108,924 - Step 5: Solve for x
x = 8,905,713,603,108,924/80,640,156.30 - Step 6: Final answer
x = 110,437,702.65
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Similar ratio
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1.5x scale
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.