Finding the Fourth Proportional to 649,653,659.70, 974,480,489.55 and 504,534,837.30
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Solution
The fourth proportional to 649,653,659.70, 974,480,489.55 and 504,534,837.30 is: 756,802,255.95
Step by Step Solution
- Step 1: Write the proportion equation
649,653,659.70 : 974,480,489.55 = 504,534,837.30 : x - Step 2: Convert to fraction form
649,653,659.70/974,480,489.55 = 504,534,837.30/x - Step 3: Cross multiply
649,653,659.70x = 974,480,489.55 × 504,534,837.30 - Step 4: Simplify right side
649,653,659.70x = 491,659,355,247,133,568 - Step 5: Solve for x
x = 491,659,355,247,133,568/649,653,659.70 - Step 6: Final answer
x = 756,802,255.95
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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.