Finding the Fourth Proportional to 255,471,829.07, 352,551,278.57 and 137,997,211.21
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Solution
The fourth proportional to 255,471,829.07, 352,551,278.57 and 137,997,211.21 is: 190,436,234.90
Step by Step Solution
- Step 1: Write the proportion equation
255,471,829.07 : 352,551,278.57 = 137,997,211.21 : x - Step 2: Convert to fraction form
255,471,829.07/352,551,278.57 = 137,997,211.21/x - Step 3: Cross multiply
255,471,829.07x = 352,551,278.57 × 137,997,211.21 - Step 4: Simplify right side
255,471,829.07x = 48,651,093,249,608,472 - Step 5: Solve for x
x = 48,651,093,249,608,472/255,471,829.07 - Step 6: Final answer
x = 190,436,234.90
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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.