Finding the Fourth Proportional to 5,135,981.22, 7,087,647.69 and 2,844,139.14
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Solution
The fourth proportional to 5,135,981.22, 7,087,647.69 and 2,844,139.14 is: 3,924,908.47
Step by Step Solution
- Step 1: Write the proportion equation
5,135,981.22 : 7,087,647.69 = 2,844,139.14 : x - Step 2: Convert to fraction form
5,135,981.22/7,087,647.69 = 2,844,139.14/x - Step 3: Cross multiply
5,135,981.22x = 7,087,647.69 × 2,844,139.14 - Step 4: Simplify right side
5,135,981.22x = 20,158,256,205,659.59 - Step 5: Solve for x
x = 20,158,256,205,659.59/5,135,981.22 - Step 6: Final answer
x = 3,924,908.47
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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.