Finding the Fourth Proportional to 134,428,865.20, 201,643,297.80 and 66,304,193.20
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Solution
The fourth proportional to 134,428,865.20, 201,643,297.80 and 66,304,193.20 is: 99,456,289.80
Step by Step Solution
- Step 1: Write the proportion equation
134,428,865.20 : 201,643,297.80 = 66,304,193.20 : x - Step 2: Convert to fraction form
134,428,865.20/201,643,297.80 = 66,304,193.20/x - Step 3: Cross multiply
134,428,865.20x = 201,643,297.80 × 66,304,193.20 - Step 4: Simplify right side
134,428,865.20x = 13,369,796,174,816,336 - Step 5: Solve for x
x = 13,369,796,174,816,336/134,428,865.20 - Step 6: Final answer
x = 99,456,289.80
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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.