Finding the Fourth Proportional to 8,325,306.35, 12,486,243.32 and 3,205,979.18
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Solution
The fourth proportional to 8,325,306.35, 12,486,243.32 and 3,205,979.18 is: 4,808,307.87
Step by Step Solution
- Step 1: Write the proportion equation
8,325,306.35 : 12,486,243.32 = 3,205,979.18 : x - Step 2: Convert to fraction form
8,325,306.35/12,486,243.32 = 3,205,979.18/x - Step 3: Cross multiply
8,325,306.35x = 12,486,243.32 × 3,205,979.18 - Step 4: Simplify right side
8,325,306.35x = 40,030,636,041,872.96 - Step 5: Solve for x
x = 40,030,636,041,872.96/8,325,306.35 - Step 6: Final answer
x = 4,808,307.87
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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.