Finding the Fourth Proportional to 512,261,072.56, 706,920,130.38 and 277,311,558.70
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Solution
The fourth proportional to 512,261,072.56, 706,920,130.38 and 277,311,558.70 is: 382,689,869.94
Step by Step Solution
- Step 1: Write the proportion equation
512,261,072.56 : 706,920,130.38 = 277,311,558.70 : x - Step 2: Convert to fraction form
512,261,072.56/706,920,130.38 = 277,311,558.70/x - Step 3: Cross multiply
512,261,072.56x = 706,920,130.38 × 277,311,558.70 - Step 4: Simplify right side
512,261,072.56x = 196,037,123,232,085,024 - Step 5: Solve for x
x = 196,037,123,232,085,024/512,261,072.56 - Step 6: Final answer
x = 382,689,869.94
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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.