Finding the Fourth Proportional to 5,451,646.80, 8,177,470.20 and 4,920,805.20
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Solution
The fourth proportional to 5,451,646.80, 8,177,470.20 and 4,920,805.20 is: 7,381,207.80
Step by Step Solution
- Step 1: Write the proportion equation
5,451,646.80 : 8,177,470.20 = 4,920,805.20 : x - Step 2: Convert to fraction form
5,451,646.80/8,177,470.20 = 4,920,805.20/x - Step 3: Cross multiply
5,451,646.80x = 8,177,470.20 × 4,920,805.20 - Step 4: Simplify right side
5,451,646.80x = 40,239,737,883,005.04 - Step 5: Solve for x
x = 40,239,737,883,005.04/5,451,646.80 - Step 6: Final answer
x = 7,381,207.80
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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.