Finding the Fourth Proportional to 2,799,363,678.20, 4,199,045,517.30 and 2,783,239,364.60
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Solution
The fourth proportional to 2,799,363,678.20, 4,199,045,517.30 and 2,783,239,364.60 is: 4,174,859,046.90
Step by Step Solution
- Step 1: Write the proportion equation
2,799,363,678.20 : 4,199,045,517.30 = 2,783,239,364.60 : x - Step 2: Convert to fraction form
2,799,363,678.20/4,199,045,517.30 = 2,783,239,364.60/x - Step 3: Cross multiply
2,799,363,678.20x = 4,199,045,517.30 × 2,783,239,364.60 - Step 4: Simplify right side
2,799,363,678.20x = 11,686,948,777,496,530,944 - Step 5: Solve for x
x = 11,686,948,777,496,530,944/2,799,363,678.20 - Step 6: Final answer
x = 4,174,859,046.90
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Double scale
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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.