Finding the Fourth Proportional to 5,163,633.97, 7,125,775.44 and 2,840,476.51
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Solution
The fourth proportional to 5,163,633.97, 7,125,775.44 and 2,840,476.51 is: 3,919,835.89
Step by Step Solution
- Step 1: Write the proportion equation
5,163,633.97 : 7,125,775.44 = 2,840,476.51 : x - Step 2: Convert to fraction form
5,163,633.97/7,125,775.44 = 2,840,476.51/x - Step 3: Cross multiply
5,163,633.97x = 7,125,775.44 × 2,840,476.51 - Step 4: Simplify right side
5,163,633.97x = 20,240,597,751,110.35 - Step 5: Solve for x
x = 20,240,597,751,110.35/5,163,633.97 - Step 6: Final answer
x = 3,919,835.89
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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.