Finding the Fourth Proportional to 8,422,631.38, 11,623,239.06 and 4,555,152.54
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Solution
The fourth proportional to 8,422,631.38, 11,623,239.06 and 4,555,152.54 is: 6,286,114.70
Step by Step Solution
- Step 1: Write the proportion equation
8,422,631.38 : 11,623,239.06 = 4,555,152.54 : x - Step 2: Convert to fraction form
8,422,631.38/11,623,239.06 = 4,555,152.54/x - Step 3: Cross multiply
8,422,631.38x = 11,623,239.06 × 4,555,152.54 - Step 4: Simplify right side
8,422,631.38x = 52,945,626,935,727.12 - Step 5: Solve for x
x = 52,945,626,935,727.12/8,422,631.38 - Step 6: Final answer
x = 6,286,114.70
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1.5x scale
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.