Finding the Fourth Proportional to 3,866,435.12, 5,337,619.80 and 2,416,936.88
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Solution
The fourth proportional to 3,866,435.12, 5,337,619.80 and 2,416,936.88 is: 3,336,585.19
Step by Step Solution
- Step 1: Write the proportion equation
3,866,435.12 : 5,337,619.80 = 2,416,936.88 : x - Step 2: Convert to fraction form
3,866,435.12/5,337,619.80 = 2,416,936.88/x - Step 3: Cross multiply
3,866,435.12x = 5,337,619.80 × 2,416,936.88 - Step 4: Simplify right side
3,866,435.12x = 12,900,690,146,038.22 - Step 5: Solve for x
x = 12,900,690,146,038.22/3,866,435.12 - Step 6: Final answer
x = 3,336,585.19
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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.