Finding the Fourth Proportional to 5,189,700.80, 7,785,295.20 and 1,595,769.60
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Solution
The fourth proportional to 5,189,700.80, 7,785,295.20 and 1,595,769.60 is: 2,393,883.17
Step by Step Solution
- Step 1: Write the proportion equation
5,189,700.80 : 7,785,295.20 = 1,595,769.60 : x - Step 2: Convert to fraction form
5,189,700.80/7,785,295.20 = 1,595,769.60/x - Step 3: Cross multiply
5,189,700.80x = 7,785,295.20 × 1,595,769.60 - Step 4: Simplify right side
5,189,700.80x = 12,423,537,407,185.92 - Step 5: Solve for x
x = 12,423,537,407,185.92/5,189,700.80 - Step 6: Final answer
x = 2,393,883.17
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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.