Finding the Fourth Proportional to 8,169,391.20, 12,254,547.60 and 2,489,800.80
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Solution
The fourth proportional to 8,169,391.20, 12,254,547.60 and 2,489,800.80 is: 3,734,841.64
Step by Step Solution
- Step 1: Write the proportion equation
8,169,391.20 : 12,254,547.60 = 2,489,800.80 : x - Step 2: Convert to fraction form
8,169,391.20/12,254,547.60 = 2,489,800.80/x - Step 3: Cross multiply
8,169,391.20x = 12,254,547.60 × 2,489,800.80 - Step 4: Simplify right side
8,169,391.20x = 30,511,382,418,118.08 - Step 5: Solve for x
x = 30,511,382,418,118.08/8,169,391.20 - Step 6: Final answer
x = 3,734,841.64
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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.