Finding the Fourth Proportional to 3,930,461.56, 5,423,974.14 and 2,211,581.08
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Solution
The fourth proportional to 3,930,461.56, 5,423,974.14 and 2,211,581.08 is: 3,051,946.55
Step by Step Solution
- Step 1: Write the proportion equation
3,930,461.56 : 5,423,974.14 = 2,211,581.08 : x - Step 2: Convert to fraction form
3,930,461.56/5,423,974.14 = 2,211,581.08/x - Step 3: Cross multiply
3,930,461.56x = 5,423,974.14 × 2,211,581.08 - Step 4: Simplify right side
3,930,461.56x = 11,995,558,586,433.27 - Step 5: Solve for x
x = 11,995,558,586,433.27/3,930,461.56 - Step 6: Final answer
x = 3,051,946.55
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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.