Finding the Fourth Proportional to 11,539,905.36, 15,841,677.37 and 9,905,475.21
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Solution
The fourth proportional to 11,539,905.36, 15,841,677.37 and 9,905,475.21 is: 13,597,974.82
Step by Step Solution
- Step 1: Write the proportion equation
11,539,905.36 : 15,841,677.37 = 9,905,475.21 : x - Step 2: Convert to fraction form
11,539,905.36/15,841,677.37 = 9,905,475.21/x - Step 3: Cross multiply
11,539,905.36x = 15,841,677.37 × 9,905,475.21 - Step 4: Simplify right side
11,539,905.36x = 156,919,342,394,144.59 - Step 5: Solve for x
x = 156,919,342,394,144.59/11,539,905.36 - Step 6: Final answer
x = 13,597,974.82
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.