Finding the Fourth Proportional to 2,188,021,229.20, 3,282,031,843.80 and 656,211,437.20
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Solution
The fourth proportional to 2,188,021,229.20, 3,282,031,843.80 and 656,211,437.20 is: 984,317,155.80
Step by Step Solution
- Step 1: Write the proportion equation
2,188,021,229.20 : 3,282,031,843.80 = 656,211,437.20 : x - Step 2: Convert to fraction form
2,188,021,229.20/3,282,031,843.80 = 656,211,437.20/x - Step 3: Cross multiply
2,188,021,229.20x = 3,282,031,843.80 × 656,211,437.20 - Step 4: Simplify right side
2,188,021,229.20x = 2,153,706,833,156,164,096 - Step 5: Solve for x
x = 2,153,706,833,156,164,096/2,188,021,229.20 - Step 6: Final answer
x = 984,317,155.80
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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.