Finding the Fourth Proportional to 285,121,258.08, 393,467,499.88 and 154,741,066.08
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Solution
The fourth proportional to 285,121,258.08, 393,467,499.88 and 154,741,066.08 is: 213,542,760.05
Step by Step Solution
- Step 1: Write the proportion equation
285,121,258.08 : 393,467,499.88 = 154,741,066.08 : x - Step 2: Convert to fraction form
285,121,258.08/393,467,499.88 = 154,741,066.08/x - Step 3: Cross multiply
285,121,258.08x = 393,467,499.88 × 154,741,066.08 - Step 4: Simplify right side
285,121,258.08x = 60,885,580,399,263,480 - Step 5: Solve for x
x = 60,885,580,399,263,480/285,121,258.08 - Step 6: Final answer
x = 213,542,760.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.