Finding the Fourth Proportional to 895,941,798.44, 1,236,336,546.64 and 499,447,249.60
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Solution
The fourth proportional to 895,941,798.44, 1,236,336,546.64 and 499,447,249.60 is: 689,202,009.41
Step by Step Solution
- Step 1: Write the proportion equation
895,941,798.44 : 1,236,336,546.64 = 499,447,249.60 : x - Step 2: Convert to fraction form
895,941,798.44/1,236,336,546.64 = 499,447,249.60/x - Step 3: Cross multiply
895,941,798.44x = 1,236,336,546.64 × 499,447,249.60 - Step 4: Simplify right side
895,941,798.44x = 617,484,887,799,310,208 - Step 5: Solve for x
x = 617,484,887,799,310,208/895,941,798.44 - Step 6: Final answer
x = 689,202,009.41
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Double scale
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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.