Finding the Fourth Proportional to 385,539,363.87, 532,482,378.84 and 259,874,825.01
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Solution
The fourth proportional to 385,539,363.87, 532,482,378.84 and 259,874,825.01 is: 358,922,532.92
Step by Step Solution
- Step 1: Write the proportion equation
385,539,363.87 : 532,482,378.84 = 259,874,825.01 : x - Step 2: Convert to fraction form
385,539,363.87/532,482,378.84 = 259,874,825.01/x - Step 3: Cross multiply
385,539,363.87x = 532,482,378.84 × 259,874,825.01 - Step 4: Simplify right side
385,539,363.87x = 138,378,765,021,953,520 - Step 5: Solve for x
x = 138,378,765,021,953,520/385,539,363.87 - Step 6: Final answer
x = 358,922,532.92
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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.