Finding the Fourth Proportional to 363,695,201.20, 545,542,801.80 and 159,621,857.20
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Solution
The fourth proportional to 363,695,201.20, 545,542,801.80 and 159,621,857.20 is: 239,432,785.80
Step by Step Solution
- Step 1: Write the proportion equation
363,695,201.20 : 545,542,801.80 = 159,621,857.20 : x - Step 2: Convert to fraction form
363,695,201.20/545,542,801.80 = 159,621,857.20/x - Step 3: Cross multiply
363,695,201.20x = 545,542,801.80 × 159,621,857.20 - Step 4: Simplify right side
363,695,201.20x = 87,080,555,205,407,488 - Step 5: Solve for x
x = 87,080,555,205,407,488/363,695,201.20 - Step 6: Final answer
x = 239,432,785.80
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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.