Finding the Fourth Proportional to 2,087,672,499.40, 3,131,508,749.10 and 1,399,701,785.80
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Solution
The fourth proportional to 2,087,672,499.40, 3,131,508,749.10 and 1,399,701,785.80 is: 2,099,552,678.70
Step by Step Solution
- Step 1: Write the proportion equation
2,087,672,499.40 : 3,131,508,749.10 = 1,399,701,785.80 : x - Step 2: Convert to fraction form
2,087,672,499.40/3,131,508,749.10 = 1,399,701,785.80/x - Step 3: Cross multiply
2,087,672,499.40x = 3,131,508,749.10 × 1,399,701,785.80 - Step 4: Simplify right side
2,087,672,499.40x = 4,383,178,388,363,593,728 - Step 5: Solve for x
x = 4,383,178,388,363,593,728/2,087,672,499.40 - Step 6: Final answer
x = 2,099,552,678.70
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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.