Finding the Fourth Proportional to 6,885,891.10, 10,319,979.30 and 4,187,351.80
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Solution
The fourth proportional to 6,885,891.10, 10,319,979.30 and 4,187,351.80 is: 6,275,641.49
Step by Step Solution
- Step 1: Write the proportion equation
6,885,891.10 : 10,319,979.30 = 4,187,351.80 : x - Step 2: Convert to fraction form
6,885,891.10/10,319,979.30 = 4,187,351.80/x - Step 3: Cross multiply
6,885,891.10x = 10,319,979.30 × 4,187,351.80 - Step 4: Simplify right side
6,885,891.10x = 43,213,383,897,817.74 - Step 5: Solve for x
x = 43,213,383,897,817.74/6,885,891.10 - Step 6: Final answer
x = 6,275,641.49
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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.