Finding the Fourth Proportional to 747,306,812.70, 1,120,960,219.05 and 332,782,832.70
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Solution
The fourth proportional to 747,306,812.70, 1,120,960,219.05 and 332,782,832.70 is: 499,174,249.05
Step by Step Solution
- Step 1: Write the proportion equation
747,306,812.70 : 1,120,960,219.05 = 332,782,832.70 : x - Step 2: Convert to fraction form
747,306,812.70/1,120,960,219.05 = 332,782,832.70/x - Step 3: Cross multiply
747,306,812.70x = 1,120,960,219.05 × 332,782,832.70 - Step 4: Simplify right side
747,306,812.70x = 373,036,317,039,471,488 - Step 5: Solve for x
x = 373,036,317,039,471,488/747,306,812.70 - Step 6: Final answer
x = 499,174,249.05
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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.