Finding the Fourth Proportional to 5,443,807.80, 8,165,711.70 and 1,853,628.60
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Solution
The fourth proportional to 5,443,807.80, 8,165,711.70 and 1,853,628.60 is: 2,780,442.90
Step by Step Solution
- Step 1: Write the proportion equation
5,443,807.80 : 8,165,711.70 = 1,853,628.60 : x - Step 2: Convert to fraction form
5,443,807.80/8,165,711.70 = 1,853,628.60/x - Step 3: Cross multiply
5,443,807.80x = 8,165,711.70 × 1,853,628.60 - Step 4: Simplify right side
5,443,807.80x = 15,136,196,746,474.62 - Step 5: Solve for x
x = 15,136,196,746,474.62/5,443,807.80 - Step 6: Final answer
x = 2,780,442.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.