Finding the Fourth Proportional to 848,280,147.30, 1,272,420,220.95 and 440,133,459.30
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Solution
The fourth proportional to 848,280,147.30, 1,272,420,220.95 and 440,133,459.30 is: 660,200,188.95
Step by Step Solution
- Step 1: Write the proportion equation
848,280,147.30 : 1,272,420,220.95 = 440,133,459.30 : x - Step 2: Convert to fraction form
848,280,147.30/1,272,420,220.95 = 440,133,459.30/x - Step 3: Cross multiply
848,280,147.30x = 1,272,420,220.95 × 440,133,459.30 - Step 4: Simplify right side
848,280,147.30x = 560,034,713,529,993,856 - Step 5: Solve for x
x = 560,034,713,529,993,856/848,280,147.30 - Step 6: Final answer
x = 660,200,188.95
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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.