Finding the Fourth Proportional to 201,678,169.20, 302,517,253.80 and 132,803,415.60
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Solution
The fourth proportional to 201,678,169.20, 302,517,253.80 and 132,803,415.60 is: 199,205,123.40
Step by Step Solution
- Step 1: Write the proportion equation
201,678,169.20 : 302,517,253.80 = 132,803,415.60 : x - Step 2: Convert to fraction form
201,678,169.20/302,517,253.80 = 132,803,415.60/x - Step 3: Cross multiply
201,678,169.20x = 302,517,253.80 × 132,803,415.60 - Step 4: Simplify right side
201,678,169.20x = 40,175,324,582,572,080 - Step 5: Solve for x
x = 40,175,324,582,572,080/201,678,169.20 - Step 6: Final answer
x = 199,205,123.40
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1.5x scale
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.