Finding the Fourth Proportional to 543,281,119.70, 814,921,679.55 and 543,281,119.70
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Solution
The fourth proportional to 543,281,119.70, 814,921,679.55 and 543,281,119.70 is: 814,921,679.55
Step by Step Solution
- Step 1: Write the proportion equation
543,281,119.70 : 814,921,679.55 = 543,281,119.70 : x - Step 2: Convert to fraction form
543,281,119.70/814,921,679.55 = 543,281,119.70/x - Step 3: Cross multiply
543,281,119.70x = 814,921,679.55 × 543,281,119.70 - Step 4: Simplify right side
543,281,119.70x = 442,731,562,533,728,576 - Step 5: Solve for x
x = 442,731,562,533,728,576/543,281,119.70 - Step 6: Final answer
x = 814,921,679.55
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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.