Finding the Fourth Proportional to 3,930,457.56, 5,423,968.62 and 2,211,577.08
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Solution
The fourth proportional to 3,930,457.56, 5,423,968.62 and 2,211,577.08 is: 3,051,941.03
Step by Step Solution
- Step 1: Write the proportion equation
3,930,457.56 : 5,423,968.62 = 2,211,577.08 : x - Step 2: Convert to fraction form
3,930,457.56/5,423,968.62 = 2,211,577.08/x - Step 3: Cross multiply
3,930,457.56x = 5,423,968.62 × 2,211,577.08 - Step 4: Simplify right side
3,930,457.56x = 11,995,524,682,631.23 - Step 5: Solve for x
x = 11,995,524,682,631.23/3,930,457.56 - Step 6: Final answer
x = 3,051,941.03
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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.