Finding the Fourth Proportional to 12,457,057.80, 18,685,586.70 and 5,266,201.80
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Solution
The fourth proportional to 12,457,057.80, 18,685,586.70 and 5,266,201.80 is: 7,899,302.70
Step by Step Solution
- Step 1: Write the proportion equation
12,457,057.80 : 18,685,586.70 = 5,266,201.80 : x - Step 2: Convert to fraction form
12,457,057.80/18,685,586.70 = 5,266,201.80/x - Step 3: Cross multiply
12,457,057.80x = 18,685,586.70 × 5,266,201.80 - Step 4: Simplify right side
12,457,057.80x = 98,402,070,313,596.05 - Step 5: Solve for x
x = 98,402,070,313,596.05/12,457,057.80 - Step 6: Final answer
x = 7,899,302.70
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1.5x scale
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.