Finding the Fourth Proportional to 5,375,993.96, 7,418,868.40 and 2,961,545.96
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Solution
The fourth proportional to 5,375,993.96, 7,418,868.40 and 2,961,545.96 is: 4,086,931.63
Step by Step Solution
- Step 1: Write the proportion equation
5,375,993.96 : 7,418,868.40 = 2,961,545.96 : x - Step 2: Convert to fraction form
5,375,993.96/7,418,868.40 = 2,961,545.96/x - Step 3: Cross multiply
5,375,993.96x = 7,418,868.40 × 2,961,545.96 - Step 4: Simplify right side
5,375,993.96x = 21,971,319,760,040.77 - Step 5: Solve for x
x = 21,971,319,760,040.77/5,375,993.96 - Step 6: Final answer
x = 4,086,931.63
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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.