Finding the Fourth Proportional to 8,790,821.80, 13,186,232.70 and 8,633,357.80
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Solution
The fourth proportional to 8,790,821.80, 13,186,232.70 and 8,633,357.80 is: 12,950,036.70
Step by Step Solution
- Step 1: Write the proportion equation
8,790,821.80 : 13,186,232.70 = 8,633,357.80 : x - Step 2: Convert to fraction form
8,790,821.80/13,186,232.70 = 8,633,357.80/x - Step 3: Cross multiply
8,790,821.80x = 13,186,232.70 × 8,633,357.80 - Step 4: Simplify right side
8,790,821.80x = 113,841,464,933,160.06 - Step 5: Solve for x
x = 113,841,464,933,160.06/8,790,821.80 - Step 6: Final answer
x = 12,950,036.70
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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.