Finding the Fourth Proportional to 21,318,797.13, 29,420,028.68 and 11,529,241.32
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Solution
The fourth proportional to 21,318,797.13, 29,420,028.68 and 11,529,241.32 is: 15,910,400.95
Step by Step Solution
- Step 1: Write the proportion equation
21,318,797.13 : 29,420,028.68 = 11,529,241.32 : x - Step 2: Convert to fraction form
21,318,797.13/29,420,028.68 = 11,529,241.32/x - Step 3: Cross multiply
21,318,797.13x = 29,420,028.68 × 11,529,241.32 - Step 4: Simplify right side
21,318,797.13x = 339,190,610,219,929.81 - Step 5: Solve for x
x = 339,190,610,219,929.81/21,318,797.13 - Step 6: Final answer
x = 15,910,400.95
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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.