Finding the Fourth Proportional to 339,555,763.80, 509,333,645.70 and 271,531,315.80
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Solution
The fourth proportional to 339,555,763.80, 509,333,645.70 and 271,531,315.80 is: 407,296,973.70
Step by Step Solution
- Step 1: Write the proportion equation
339,555,763.80 : 509,333,645.70 = 271,531,315.80 : x - Step 2: Convert to fraction form
339,555,763.80/509,333,645.70 = 271,531,315.80/x - Step 3: Cross multiply
339,555,763.80x = 509,333,645.70 × 271,531,315.80 - Step 4: Simplify right side
339,555,763.80x = 138,300,034,998,132,016 - Step 5: Solve for x
x = 138,300,034,998,132,016/339,555,763.80 - Step 6: Final answer
x = 407,296,973.70
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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.