Finding the Fourth Proportional to 8,317,207.20, 12,475,810.80 and 8,205,232.80
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Solution
The fourth proportional to 8,317,207.20, 12,475,810.80 and 8,205,232.80 is: 12,307,849.20
Step by Step Solution
- Step 1: Write the proportion equation
8,317,207.20 : 12,475,810.80 = 8,205,232.80 : x - Step 2: Convert to fraction form
8,317,207.20/12,475,810.80 = 8,205,232.80/x - Step 3: Cross multiply
8,317,207.20x = 12,475,810.80 × 8,205,232.80 - Step 4: Simplify right side
8,317,207.20x = 102,366,931,982,754.25 - Step 5: Solve for x
x = 102,366,931,982,754.25/8,317,207.20 - Step 6: Final answer
x = 12,307,849.20
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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.