Finding the Fourth Proportional to 1,183,449,114.90, 1,775,173,672.35 and 310,048,794.90
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Solution
The fourth proportional to 1,183,449,114.90, 1,775,173,672.35 and 310,048,794.90 is: 465,073,192.35
Step by Step Solution
- Step 1: Write the proportion equation
1,183,449,114.90 : 1,775,173,672.35 = 310,048,794.90 : x - Step 2: Convert to fraction form
1,183,449,114.90/1,775,173,672.35 = 310,048,794.90/x - Step 3: Cross multiply
1,183,449,114.90x = 1,775,173,672.35 × 310,048,794.90 - Step 4: Simplify right side
1,183,449,114.90x = 550,390,457,850,324,864 - Step 5: Solve for x
x = 550,390,457,850,324,864/1,183,449,114.90 - Step 6: Final answer
x = 465,073,192.35
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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.