Finding the Fourth Proportional to 315,040,202.20, 472,560,303.30 and 271,958,051.80
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Solution
The fourth proportional to 315,040,202.20, 472,560,303.30 and 271,958,051.80 is: 407,937,077.70
Step by Step Solution
- Step 1: Write the proportion equation
315,040,202.20 : 472,560,303.30 = 271,958,051.80 : x - Step 2: Convert to fraction form
315,040,202.20/472,560,303.30 = 271,958,051.80/x - Step 3: Cross multiply
315,040,202.20x = 472,560,303.30 × 271,958,051.80 - Step 4: Simplify right side
315,040,202.20x = 128,516,579,443,485,120 - Step 5: Solve for x
x = 128,516,579,443,485,120/315,040,202.20 - Step 6: Final answer
x = 407,937,077.70
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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.