Finding the Fourth Proportional to 18,018,340.20, 27,024,885.90 and 5,237,512.20
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Solution
The fourth proportional to 18,018,340.20, 27,024,885.90 and 5,237,512.20 is: 7,855,505.45
Step by Step Solution
- Step 1: Write the proportion equation
18,018,340.20 : 27,024,885.90 = 5,237,512.20 : x - Step 2: Convert to fraction form
18,018,340.20/27,024,885.90 = 5,237,512.20/x - Step 3: Cross multiply
18,018,340.20x = 27,024,885.90 × 5,237,512.20 - Step 4: Simplify right side
18,018,340.20x = 141,543,169,604,857.97 - Step 5: Solve for x
x = 141,543,169,604,857.97/18,018,340.20 - Step 6: Final answer
x = 7,855,505.45
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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.