Finding the Fourth Proportional to 3,930,444.56, 5,423,950.68 and 2,211,564.08
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Solution
The fourth proportional to 3,930,444.56, 5,423,950.68 and 2,211,564.08 is: 3,051,923.09
Step by Step Solution
- Step 1: Write the proportion equation
3,930,444.56 : 5,423,950.68 = 2,211,564.08 : x - Step 2: Convert to fraction form
3,930,444.56/5,423,950.68 = 2,211,564.08/x - Step 3: Cross multiply
3,930,444.56x = 5,423,950.68 × 2,211,564.08 - Step 4: Simplify right side
3,930,444.56x = 11,995,414,495,579.57 - Step 5: Solve for x
x = 11,995,414,495,579.57/3,930,444.56 - Step 6: Final answer
x = 3,051,923.09
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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.