Finding the Fourth Proportional to 5,130,794.79, 7,080,497.49 and 2,807,687.81
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Solution
The fourth proportional to 5,130,794.79, 7,080,497.49 and 2,807,687.81 is: 3,874,609.55
Step by Step Solution
- Step 1: Write the proportion equation
5,130,794.79 : 7,080,497.49 = 2,807,687.81 : x - Step 2: Convert to fraction form
5,130,794.79/7,080,497.49 = 2,807,687.81/x - Step 3: Cross multiply
5,130,794.79x = 7,080,497.49 × 2,807,687.81 - Step 4: Simplify right side
5,130,794.79x = 19,879,826,491,408.60 - Step 5: Solve for x
x = 19,879,826,491,408.60/5,130,794.79 - Step 6: Final answer
x = 3,874,609.55
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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.