Finding the Fourth Proportional to 1,366,321,276.52, 1,885,524,251.26 and 739,790,128.88
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Solution
The fourth proportional to 1,366,321,276.52, 1,885,524,251.26 and 739,790,128.88 is: 1,020,910,859.56
Step by Step Solution
- Step 1: Write the proportion equation
1,366,321,276.52 : 1,885,524,251.26 = 739,790,128.88 : x - Step 2: Convert to fraction form
1,366,321,276.52/1,885,524,251.26 = 739,790,128.88/x - Step 3: Cross multiply
1,366,321,276.52x = 1,885,524,251.26 × 739,790,128.88 - Step 4: Simplify right side
1,366,321,276.52x = 1,394,892,228,840,859,648 - Step 5: Solve for x
x = 1,394,892,228,840,859,648/1,366,321,276.52 - Step 6: Final answer
x = 1,020,910,859.56
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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.