Finding the Fourth Proportional to 339,310,658.40, 509,115,286.80 and 157,464,232.80
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Solution
The fourth proportional to 339,310,658.40, 509,115,286.80 and 157,464,232.80 is: 236,265,634.63
Step by Step Solution
- Step 1: Write the proportion equation
339,310,658.40 : 509,115,286.80 = 157,464,232.80 : x - Step 2: Convert to fraction form
339,310,658.40/509,115,286.80 = 157,464,232.80/x - Step 3: Cross multiply
339,310,658.40x = 509,115,286.80 × 157,464,232.80 - Step 4: Simplify right side
339,310,658.40x = 80,167,448,042,713,968 - Step 5: Solve for x
x = 80,167,448,042,713,968/339,310,658.40 - Step 6: Final answer
x = 236,265,634.63
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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.