Finding the Fourth Proportional to 629,857,469.20, 944,786,203.80 and 530,088,278.80
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Solution
The fourth proportional to 629,857,469.20, 944,786,203.80 and 530,088,278.80 is: 795,132,418.20
Step by Step Solution
- Step 1: Write the proportion equation
629,857,469.20 : 944,786,203.80 = 530,088,278.80 : x - Step 2: Convert to fraction form
629,857,469.20/944,786,203.80 = 530,088,278.80/x - Step 3: Cross multiply
629,857,469.20x = 944,786,203.80 × 530,088,278.80 - Step 4: Simplify right side
629,857,469.20x = 500,820,092,606,328,000 - Step 5: Solve for x
x = 500,820,092,606,328,000/629,857,469.20 - Step 6: Final answer
x = 795,132,418.20
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Double scale
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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.