Finding the Fourth Proportional to 5,135,988.72, 7,087,658.04 and 2,844,146.64
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Solution
The fourth proportional to 5,135,988.72, 7,087,658.04 and 2,844,146.64 is: 3,924,918.82
Step by Step Solution
- Step 1: Write the proportion equation
5,135,988.72 : 7,087,658.04 = 2,844,146.64 : x - Step 2: Convert to fraction form
5,135,988.72/7,087,658.04 = 2,844,146.64/x - Step 3: Cross multiply
5,135,988.72x = 7,087,658.04 × 2,844,146.64 - Step 4: Simplify right side
5,135,988.72x = 20,158,338,799,934.99 - Step 5: Solve for x
x = 20,158,338,799,934.99/5,135,988.72 - Step 6: Final answer
x = 3,924,918.82
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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.