Finding the Fourth Proportional to 908,344,296.11, 1,253,515,677.80 and 490,656,765.94
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Solution
The fourth proportional to 908,344,296.11, 1,253,515,677.80 and 490,656,765.94 is: 677,106,633.63
Step by Step Solution
- Step 1: Write the proportion equation
908,344,296.11 : 1,253,515,677.80 = 490,656,765.94 : x - Step 2: Convert to fraction form
908,344,296.11/1,253,515,677.80 = 490,656,765.94/x - Step 3: Cross multiply
908,344,296.11x = 1,253,515,677.80 × 490,656,765.94 - Step 4: Simplify right side
908,344,296.11x = 615,045,948,518,848,000 - Step 5: Solve for x
x = 615,045,948,518,848,000/908,344,296.11 - Step 6: Final answer
x = 677,106,633.63
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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.