Finding the Fourth Proportional to 908,335,673.37, 1,253,503,733.13 and 490,647,960.99
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Solution
The fourth proportional to 908,335,673.37, 1,253,503,733.13 and 490,647,960.99 is: 677,094,458.34
Step by Step Solution
- Step 1: Write the proportion equation
908,335,673.37 : 1,253,503,733.13 = 490,647,960.99 : x - Step 2: Convert to fraction form
908,335,673.37/1,253,503,733.13 = 490,647,960.99/x - Step 3: Cross multiply
908,335,673.37x = 1,253,503,733.13 × 490,647,960.99 - Step 4: Simplify right side
908,335,673.37x = 615,029,050,753,587,712 - Step 5: Solve for x
x = 615,029,050,753,587,712/908,335,673.37 - Step 6: Final answer
x = 677,094,458.34
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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.