Finding the Fourth Proportional to 568,885,282.20, 785,125,401.12 and 321,382,579.68
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Solution
The fourth proportional to 568,885,282.20, 785,125,401.12 and 321,382,579.68 is: 443,543,952.85
Step by Step Solution
- Step 1: Write the proportion equation
568,885,282.20 : 785,125,401.12 = 321,382,579.68 : x - Step 2: Convert to fraction form
568,885,282.20/785,125,401.12 = 321,382,579.68/x - Step 3: Cross multiply
568,885,282.20x = 785,125,401.12 × 321,382,579.68 - Step 4: Simplify right side
568,885,282.20x = 252,325,626,784,240,384 - Step 5: Solve for x
x = 252,325,626,784,240,384/568,885,282.20 - Step 6: Final answer
x = 443,543,952.85
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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.