Finding the Fourth Proportional to 204,143,886.40, 306,215,829.60 and 186,287,468.80
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Solution
The fourth proportional to 204,143,886.40, 306,215,829.60 and 186,287,468.80 is: 279,431,203.20
Step by Step Solution
- Step 1: Write the proportion equation
204,143,886.40 : 306,215,829.60 = 186,287,468.80 : x - Step 2: Convert to fraction form
204,143,886.40/306,215,829.60 = 186,287,468.80/x - Step 3: Cross multiply
204,143,886.40x = 306,215,829.60 × 186,287,468.80 - Step 4: Simplify right side
204,143,886.40x = 57,044,171,802,676,128 - Step 5: Solve for x
x = 57,044,171,802,676,128/204,143,886.40 - Step 6: Final answer
x = 279,431,203.20
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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.