Finding the Fourth Proportional to 8,205,874.16, 12,297,808.76 and 6,386,436.06
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Solution
The fourth proportional to 8,205,874.16, 12,297,808.76 and 6,386,436.06 is: 9,571,091.12
Step by Step Solution
- Step 1: Write the proportion equation
8,205,874.16 : 12,297,808.76 = 6,386,436.06 : x - Step 2: Convert to fraction form
8,205,874.16/12,297,808.76 = 6,386,436.06/x - Step 3: Cross multiply
8,205,874.16x = 12,297,808.76 × 6,386,436.06 - Step 4: Simplify right side
8,205,874.16x = 78,539,169,323,847.88 - Step 5: Solve for x
x = 78,539,169,323,847.88/8,205,874.16 - Step 6: Final answer
x = 9,571,091.12
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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.