Finding the Fourth Proportional to 11,591,837.28, 15,996,791.52 and 7,243,449.12
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Solution
The fourth proportional to 11,591,837.28, 15,996,791.52 and 7,243,449.12 is: 9,995,994.82
Step by Step Solution
- Step 1: Write the proportion equation
11,591,837.28 : 15,996,791.52 = 7,243,449.12 : x - Step 2: Convert to fraction form
11,591,837.28/15,996,791.52 = 7,243,449.12/x - Step 3: Cross multiply
11,591,837.28x = 15,996,791.52 × 7,243,449.12 - Step 4: Simplify right side
11,591,837.28x = 115,871,945,458,367.47 - Step 5: Solve for x
x = 115,871,945,458,367.47/11,591,837.28 - Step 6: Final answer
x = 9,995,994.82
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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.