Finding the Fourth Proportional to 201,678,193.20, 302,517,289.80 and 132,803,439.60
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Solution
The fourth proportional to 201,678,193.20, 302,517,289.80 and 132,803,439.60 is: 199,205,159.40
Step by Step Solution
- Step 1: Write the proportion equation
201,678,193.20 : 302,517,289.80 = 132,803,439.60 : x - Step 2: Convert to fraction form
201,678,193.20/302,517,289.80 = 132,803,439.60/x - Step 3: Cross multiply
201,678,193.20x = 302,517,289.80 × 132,803,439.60 - Step 4: Simplify right side
201,678,193.20x = 40,175,336,623,909,992 - Step 5: Solve for x
x = 40,175,336,623,909,992/201,678,193.20 - Step 6: Final answer
x = 199,205,159.40
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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.