Finding the Fourth Proportional to 252,352,823.70, 378,529,235.55 and 137,561,567.70
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Solution
The fourth proportional to 252,352,823.70, 378,529,235.55 and 137,561,567.70 is: 206,342,351.55
Step by Step Solution
- Step 1: Write the proportion equation
252,352,823.70 : 378,529,235.55 = 137,561,567.70 : x - Step 2: Convert to fraction form
252,352,823.70/378,529,235.55 = 137,561,567.70/x - Step 3: Cross multiply
252,352,823.70x = 378,529,235.55 × 137,561,567.70 - Step 4: Simplify right side
252,352,823.70x = 52,071,075,062,540,568 - Step 5: Solve for x
x = 52,071,075,062,540,568/252,352,823.70 - Step 6: Final answer
x = 206,342,351.55
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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.