Finding the Fourth Proportional to 11,772,745.64, 16,236,272.36 and 7,638,703.28
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Solution
The fourth proportional to 11,772,745.64, 16,236,272.36 and 7,638,703.28 is: 10,534,846.39
Step by Step Solution
- Step 1: Write the proportion equation
11,772,745.64 : 16,236,272.36 = 7,638,703.28 : x - Step 2: Convert to fraction form
11,772,745.64/16,236,272.36 = 7,638,703.28/x - Step 3: Cross multiply
11,772,745.64x = 16,236,272.36 × 7,638,703.28 - Step 4: Simplify right side
11,772,745.64x = 124,024,066,887,139.05 - Step 5: Solve for x
x = 124,024,066,887,139.05/11,772,745.64 - Step 6: Final answer
x = 10,534,846.39
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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.