Finding the Fourth Proportional to 99,233,418.36, 136,942,231.08 and 55,179,471.36
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Solution
The fourth proportional to 99,233,418.36, 136,942,231.08 and 55,179,471.36 is: 76,147,733.72
Step by Step Solution
- Step 1: Write the proportion equation
99,233,418.36 : 136,942,231.08 = 55,179,471.36 : x - Step 2: Convert to fraction form
99,233,418.36/136,942,231.08 = 55,179,471.36/x - Step 3: Cross multiply
99,233,418.36x = 136,942,231.08 × 55,179,471.36 - Step 4: Simplify right side
99,233,418.36x = 7,556,399,917,853,363 - Step 5: Solve for x
x = 7,556,399,917,853,363/99,233,418.36 - Step 6: Final answer
x = 76,147,733.72
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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.