Finding the Fourth Proportional to 252,128,049.30, 377,968,125.15 and 149,783,447.70
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Solution
The fourth proportional to 252,128,049.30, 377,968,125.15 and 149,783,447.70 is: 224,542,128.74
Step by Step Solution
- Step 1: Write the proportion equation
252,128,049.30 : 377,968,125.15 = 149,783,447.70 : x - Step 2: Convert to fraction form
252,128,049.30/377,968,125.15 = 149,783,447.70/x - Step 3: Cross multiply
252,128,049.30x = 377,968,125.15 × 149,783,447.70 - Step 4: Simplify right side
252,128,049.30x = 56,613,368,905,672,072 - Step 5: Solve for x
x = 56,613,368,905,672,072/252,128,049.30 - Step 6: Final answer
x = 224,542,128.74
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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.