Finding the Fourth Proportional to 4,920,986.70, 7,381,480.05 and 2,759,793.30
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Solution
The fourth proportional to 4,920,986.70, 7,381,480.05 and 2,759,793.30 is: 4,139,689.95
Step by Step Solution
- Step 1: Write the proportion equation
4,920,986.70 : 7,381,480.05 = 2,759,793.30 : x - Step 2: Convert to fraction form
4,920,986.70/7,381,480.05 = 2,759,793.30/x - Step 3: Cross multiply
4,920,986.70x = 7,381,480.05 × 2,759,793.30 - Step 4: Simplify right side
4,920,986.70x = 20,371,359,186,073.66 - Step 5: Solve for x
x = 20,371,359,186,073.66/4,920,986.70 - Step 6: Final answer
x = 4,139,689.95
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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.