Finding the Fourth Proportional to 369,115,649.12, 553,728,528.37 and 135,928,431.38
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Solution
The fourth proportional to 369,115,649.12, 553,728,528.37 and 135,928,431.38 is: 203,912,921.20
Step by Step Solution
- Step 1: Write the proportion equation
369,115,649.12 : 553,728,528.37 = 135,928,431.38 : x - Step 2: Convert to fraction form
369,115,649.12/553,728,528.37 = 135,928,431.38/x - Step 3: Cross multiply
369,115,649.12x = 553,728,528.37 × 135,928,431.38 - Step 4: Simplify right side
369,115,649.12x = 75,267,450,273,244,160 - Step 5: Solve for x
x = 75,267,450,273,244,160/369,115,649.12 - Step 6: Final answer
x = 203,912,921.20
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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.