Finding the Fourth Proportional to 3,971,955.66, 5,481,871.62 and 2,206,256.76
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Solution
The fourth proportional to 3,971,955.66, 5,481,871.62 and 2,206,256.76 is: 3,044,952.50
Step by Step Solution
- Step 1: Write the proportion equation
3,971,955.66 : 5,481,871.62 = 2,206,256.76 : x - Step 2: Convert to fraction form
3,971,955.66/5,481,871.62 = 2,206,256.76/x - Step 3: Cross multiply
3,971,955.66x = 5,481,871.62 × 2,206,256.76 - Step 4: Simplify right side
3,971,955.66x = 12,094,416,319,077.15 - Step 5: Solve for x
x = 12,094,416,319,077.15/3,971,955.66 - Step 6: Final answer
x = 3,044,952.50
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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.