Finding the Fourth Proportional to 21,348,134.28, 29,458,527.48 and 12,644,902.17
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Solution
The fourth proportional to 21,348,134.28, 29,458,527.48 and 12,644,902.17 is: 17,448,840.88
Step by Step Solution
- Step 1: Write the proportion equation
21,348,134.28 : 29,458,527.48 = 12,644,902.17 : x - Step 2: Convert to fraction form
21,348,134.28/29,458,527.48 = 12,644,902.17/x - Step 3: Cross multiply
21,348,134.28x = 29,458,527.48 × 12,644,902.17 - Step 4: Simplify right side
21,348,134.28x = 372,500,198,056,856.62 - Step 5: Solve for x
x = 372,500,198,056,856.62/21,348,134.28 - Step 6: Final answer
x = 17,448,840.88
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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.