Finding the Fourth Proportional to 11,505,887.51, 15,878,462.02 and 6,279,231.73
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Solution
The fourth proportional to 11,505,887.51, 15,878,462.02 and 6,279,231.73 is: 8,665,523.84
Step by Step Solution
- Step 1: Write the proportion equation
11,505,887.51 : 15,878,462.02 = 6,279,231.73 : x - Step 2: Convert to fraction form
11,505,887.51/15,878,462.02 = 6,279,231.73/x - Step 3: Cross multiply
11,505,887.51x = 15,878,462.02 × 6,279,231.73 - Step 4: Simplify right side
11,505,887.51x = 99,704,542,539,583.91 - Step 5: Solve for x
x = 99,704,542,539,583.91/11,505,887.51 - Step 6: Final answer
x = 8,665,523.84
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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.