Finding the Fourth Proportional to 930,876,135.80, 1,396,202,229.30 and 385,560,807.80
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Solution
The fourth proportional to 930,876,135.80, 1,396,202,229.30 and 385,560,807.80 is: 578,294,832.88
Step by Step Solution
- Step 1: Write the proportion equation
930,876,135.80 : 1,396,202,229.30 = 385,560,807.80 : x - Step 2: Convert to fraction form
930,876,135.80/1,396,202,229.30 = 385,560,807.80/x - Step 3: Cross multiply
930,876,135.80x = 1,396,202,229.30 × 385,560,807.80 - Step 4: Simplify right side
930,876,135.80x = 538,320,859,381,068,800 - Step 5: Solve for x
x = 538,320,859,381,068,800/930,876,135.80 - Step 6: Final answer
x = 578,294,832.88
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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.