Finding the Fourth Proportional to 20,227,345.11, 27,916,467.14 and 11,408,606.60
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Solution
The fourth proportional to 20,227,345.11, 27,916,467.14 and 11,408,606.60 is: 15,745,417.38
Step by Step Solution
- Step 1: Write the proportion equation
20,227,345.11 : 27,916,467.14 = 11,408,606.60 : x - Step 2: Convert to fraction form
20,227,345.11/27,916,467.14 = 11,408,606.60/x - Step 3: Cross multiply
20,227,345.11x = 27,916,467.14 × 11,408,606.60 - Step 4: Simplify right side
20,227,345.11x = 318,487,991,151,026.31 - Step 5: Solve for x
x = 318,487,991,151,026.31/20,227,345.11 - Step 6: Final answer
x = 15,745,417.38
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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.