Finding the Fourth Proportional to 257,410,242.80, 386,115,364.20 and 136,477,890.80
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Solution
The fourth proportional to 257,410,242.80, 386,115,364.20 and 136,477,890.80 is: 204,716,836.20
Step by Step Solution
- Step 1: Write the proportion equation
257,410,242.80 : 386,115,364.20 = 136,477,890.80 : x - Step 2: Convert to fraction form
257,410,242.80/386,115,364.20 = 136,477,890.80/x - Step 3: Cross multiply
257,410,242.80x = 386,115,364.20 × 136,477,890.80 - Step 4: Simplify right side
257,410,242.80x = 52,696,210,511,489,832 - Step 5: Solve for x
x = 52,696,210,511,489,832/257,410,242.80 - Step 6: Final answer
x = 204,716,836.20
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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.