Finding the Fourth Proportional to 252,220,050.23, 378,439,297.47 and 135,499,220.55
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Solution
The fourth proportional to 252,220,050.23, 378,439,297.47 and 135,499,220.55 is: 203,307,507.82
Step by Step Solution
- Step 1: Write the proportion equation
252,220,050.23 : 378,439,297.47 = 135,499,220.55 : x - Step 2: Convert to fraction form
252,220,050.23/378,439,297.47 = 135,499,220.55/x - Step 3: Cross multiply
252,220,050.23x = 378,439,297.47 × 135,499,220.55 - Step 4: Simplify right side
252,220,050.23x = 51,278,229,832,674,592 - Step 5: Solve for x
x = 51,278,229,832,674,592/252,220,050.23 - Step 6: Final answer
x = 203,307,507.82
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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.