Finding the Fourth Proportional to 908,344,396.24, 1,253,515,816.10 and 490,656,866.06
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Solution
The fourth proportional to 908,344,396.24, 1,253,515,816.10 and 490,656,866.06 is: 677,106,771.88
Step by Step Solution
- Step 1: Write the proportion equation
908,344,396.24 : 1,253,515,816.10 = 490,656,866.06 : x - Step 2: Convert to fraction form
908,344,396.24/1,253,515,816.10 = 490,656,866.06/x - Step 3: Cross multiply
908,344,396.24x = 1,253,515,816.10 × 490,656,866.06 - Step 4: Simplify right side
908,344,396.24x = 615,046,141,888,629,760 - Step 5: Solve for x
x = 615,046,141,888,629,760/908,344,396.24 - Step 6: Final answer
x = 677,106,771.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.