Finding the Fourth Proportional to 504,489,643.70, 756,734,465.55 and 504,489,643.70
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Solution
The fourth proportional to 504,489,643.70, 756,734,465.55 and 504,489,643.70 is: 756,734,465.55
Step by Step Solution
- Step 1: Write the proportion equation
504,489,643.70 : 756,734,465.55 = 504,489,643.70 : x - Step 2: Convert to fraction form
504,489,643.70/756,734,465.55 = 504,489,643.70/x - Step 3: Cross multiply
504,489,643.70x = 756,734,465.55 × 504,489,643.70 - Step 4: Simplify right side
504,489,643.70x = 381,764,700,900,829,376 - Step 5: Solve for x
x = 381,764,700,900,829,376/504,489,643.70 - Step 6: Final answer
x = 756,734,465.55
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Half scale
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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.