Finding the Fourth Proportional to 8,138,519.12, 11,232,033.96 and 5,201,013.68
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Solution
The fourth proportional to 8,138,519.12, 11,232,033.96 and 5,201,013.68 is: 7,177,959.70
Step by Step Solution
- Step 1: Write the proportion equation
8,138,519.12 : 11,232,033.96 = 5,201,013.68 : x - Step 2: Convert to fraction form
8,138,519.12/11,232,033.96 = 5,201,013.68/x - Step 3: Cross multiply
8,138,519.12x = 11,232,033.96 × 5,201,013.68 - Step 4: Simplify right side
8,138,519.12x = 58,417,962,280,184.57 - Step 5: Solve for x
x = 58,417,962,280,184.57/8,138,519.12 - Step 6: Final answer
x = 7,177,959.70
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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.