Finding the Fourth Proportional to 442,368,000.20, 663,552,000.30 and 395,786,649.80
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Solution
The fourth proportional to 442,368,000.20, 663,552,000.30 and 395,786,649.80 is: 593,679,974.70
Step by Step Solution
- Step 1: Write the proportion equation
442,368,000.20 : 663,552,000.30 = 395,786,649.80 : x - Step 2: Convert to fraction form
442,368,000.20/663,552,000.30 = 395,786,649.80/x - Step 3: Cross multiply
442,368,000.20x = 663,552,000.30 × 395,786,649.80 - Step 4: Simplify right side
442,368,000.20x = 262,625,023,166,825,568 - Step 5: Solve for x
x = 262,625,023,166,825,568/442,368,000.20 - Step 6: Final answer
x = 593,679,974.70
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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.