Finding the Fourth Proportional to 254,780,438.21, 351,589,882.39 and 154,368,325.70
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Solution
The fourth proportional to 254,780,438.21, 351,589,882.39 and 154,368,325.70 is: 213,023,974.12
Step by Step Solution
- Step 1: Write the proportion equation
254,780,438.21 : 351,589,882.39 = 154,368,325.70 : x - Step 2: Convert to fraction form
254,780,438.21/351,589,882.39 = 154,368,325.70/x - Step 3: Cross multiply
254,780,438.21x = 351,589,882.39 × 154,368,325.70 - Step 4: Simplify right side
254,780,438.21x = 54,274,341,475,460,336 - Step 5: Solve for x
x = 54,274,341,475,460,336/254,780,438.21 - Step 6: Final answer
x = 213,023,974.12
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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.