Finding the Fourth Proportional to 836,454,927.30, 1,254,682,390.95 and 291,015,183.30
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Solution
The fourth proportional to 836,454,927.30, 1,254,682,390.95 and 291,015,183.30 is: 436,522,774.95
Step by Step Solution
- Step 1: Write the proportion equation
836,454,927.30 : 1,254,682,390.95 = 291,015,183.30 : x - Step 2: Convert to fraction form
836,454,927.30/1,254,682,390.95 = 291,015,183.30/x - Step 3: Cross multiply
836,454,927.30x = 1,254,682,390.95 × 291,015,183.30 - Step 4: Simplify right side
836,454,927.30x = 365,131,625,985,596,544 - Step 5: Solve for x
x = 365,131,625,985,596,544/836,454,927.30 - Step 6: Final answer
x = 436,522,774.95
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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.