Finding the Fourth Proportional to 21,674,314.20, 32,511,471.30 and 8,903,983.80
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Solution
The fourth proportional to 21,674,314.20, 32,511,471.30 and 8,903,983.80 is: 13,355,975.70
Step by Step Solution
- Step 1: Write the proportion equation
21,674,314.20 : 32,511,471.30 = 8,903,983.80 : x - Step 2: Convert to fraction form
21,674,314.20/32,511,471.30 = 8,903,983.80/x - Step 3: Cross multiply
21,674,314.20x = 32,511,471.30 × 8,903,983.80 - Step 4: Simplify right side
21,674,314.20x = 289,481,613,769,365 - Step 5: Solve for x
x = 289,481,613,769,365/21,674,314.20 - Step 6: Final answer
x = 13,355,975.70
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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.