Finding the Fourth Proportional to 20,227,919.80, 30,352,377.30 and 8,869,516.60
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Solution
The fourth proportional to 20,227,919.80, 30,352,377.30 and 8,869,516.60 is: 13,308,877.88
Step by Step Solution
- Step 1: Write the proportion equation
20,227,919.80 : 30,352,377.30 = 8,869,516.60 : x - Step 2: Convert to fraction form
20,227,919.80/30,352,377.30 = 8,869,516.60/x - Step 3: Cross multiply
20,227,919.80x = 30,352,377.30 × 8,869,516.60 - Step 4: Simplify right side
20,227,919.80x = 269,210,914,311,813.19 - Step 5: Solve for x
x = 269,210,914,311,813.19/20,227,919.80 - Step 6: Final answer
x = 13,308,877.88
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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.