Finding the Fourth Proportional to 252,373,125.80, 378,559,688.70 and 252,373,125.80
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Solution
The fourth proportional to 252,373,125.80, 378,559,688.70 and 252,373,125.80 is: 378,559,688.70
Step by Step Solution
- Step 1: Write the proportion equation
252,373,125.80 : 378,559,688.70 = 252,373,125.80 : x - Step 2: Convert to fraction form
252,373,125.80/378,559,688.70 = 252,373,125.80/x - Step 3: Cross multiply
252,373,125.80x = 378,559,688.70 × 252,373,125.80 - Step 4: Simplify right side
252,373,125.80x = 95,538,291,939,093,936 - Step 5: Solve for x
x = 95,538,291,939,093,936/252,373,125.80 - Step 6: Final answer
x = 378,559,688.70
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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.