Finding the Fourth Proportional to 21,575,576.97, 29,775,201.48 and 12,408,227.01
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Solution
The fourth proportional to 21,575,576.97, 29,775,201.48 and 12,408,227.01 is: 17,123,873.89
Step by Step Solution
- Step 1: Write the proportion equation
21,575,576.97 : 29,775,201.48 = 12,408,227.01 : x - Step 2: Convert to fraction form
21,575,576.97/29,775,201.48 = 12,408,227.01/x - Step 3: Cross multiply
21,575,576.97x = 29,775,201.48 × 12,408,227.01 - Step 4: Simplify right side
21,575,576.97x = 369,457,459,232,328 - Step 5: Solve for x
x = 369,457,459,232,328/21,575,576.97 - Step 6: Final answer
x = 17,123,873.89
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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.