Finding the Fourth Proportional to 21,195,227.56, 29,253,231.12 and 12,492,892.12
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Solution
The fourth proportional to 21,195,227.56, 29,253,231.12 and 12,492,892.12 is: 17,242,440.99
Step by Step Solution
- Step 1: Write the proportion equation
21,195,227.56 : 29,253,231.12 = 12,492,892.12 : x - Step 2: Convert to fraction form
21,195,227.56/29,253,231.12 = 12,492,892.12/x - Step 3: Cross multiply
21,195,227.56x = 29,253,231.12 × 12,492,892.12 - Step 4: Simplify right side
21,195,227.56x = 365,457,460,543,586.75 - Step 5: Solve for x
x = 365,457,460,543,586.75/21,195,227.56 - Step 6: Final answer
x = 17,242,440.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.