Finding the Fourth Proportional to 926,469,388.80, 1,389,704,083.20 and 313,044,757.20
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Solution
The fourth proportional to 926,469,388.80, 1,389,704,083.20 and 313,044,757.20 is: 469,567,135.80
Step by Step Solution
- Step 1: Write the proportion equation
926,469,388.80 : 1,389,704,083.20 = 313,044,757.20 : x - Step 2: Convert to fraction form
926,469,388.80/1,389,704,083.20 = 313,044,757.20/x - Step 3: Cross multiply
926,469,388.80x = 1,389,704,083.20 × 313,044,757.20 - Step 4: Simplify right side
926,469,388.80x = 435,039,577,305,192,576 - Step 5: Solve for x
x = 435,039,577,305,192,576/926,469,388.80 - Step 6: Final answer
x = 469,567,135.80
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Similar ratio
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1.5x scale
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.