Finding the Fourth Proportional to 19,766,912.28, 27,259,175.12 and 15,414,410.49
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Solution
The fourth proportional to 19,766,912.28, 27,259,175.12 and 15,414,410.49 is: 21,256,942.35
Step by Step Solution
- Step 1: Write the proportion equation
19,766,912.28 : 27,259,175.12 = 15,414,410.49 : x - Step 2: Convert to fraction form
19,766,912.28/27,259,175.12 = 15,414,410.49/x - Step 3: Cross multiply
19,766,912.28x = 27,259,175.12 × 15,414,410.49 - Step 4: Simplify right side
19,766,912.28x = 420,184,114,841,402.94 - Step 5: Solve for x
x = 420,184,114,841,402.94/19,766,912.28 - Step 6: Final answer
x = 21,256,942.35
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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.