Finding the Fourth Proportional to 323,497,147.20, 485,245,720.80 and 201,053,140.80
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Solution
The fourth proportional to 323,497,147.20, 485,245,720.80 and 201,053,140.80 is: 301,579,711.20
Step by Step Solution
- Step 1: Write the proportion equation
323,497,147.20 : 485,245,720.80 = 201,053,140.80 : x - Step 2: Convert to fraction form
323,497,147.20/485,245,720.80 = 201,053,140.80/x - Step 3: Cross multiply
323,497,147.20x = 485,245,720.80 × 201,053,140.80 - Step 4: Simplify right side
323,497,147.20x = 97,560,176,226,599,904 - Step 5: Solve for x
x = 97,560,176,226,599,904/323,497,147.20 - Step 6: Final answer
x = 301,579,711.20
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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.