Finding the Fourth Proportional to 638,440,029.10, 957,660,043.65 and 347,194,614.70
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Solution
The fourth proportional to 638,440,029.10, 957,660,043.65 and 347,194,614.70 is: 520,791,922.05
Step by Step Solution
- Step 1: Write the proportion equation
638,440,029.10 : 957,660,043.65 = 347,194,614.70 : x - Step 2: Convert to fraction form
638,440,029.10/957,660,043.65 = 347,194,614.70/x - Step 3: Cross multiply
638,440,029.10x = 957,660,043.65 × 347,194,614.70 - Step 4: Simplify right side
638,440,029.10x = 332,494,409,868,646,912 - Step 5: Solve for x
x = 332,494,409,868,646,912/638,440,029.10 - Step 6: Final answer
x = 520,791,922.05
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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.