Finding the Fourth Proportional to 908,344,278.12, 1,253,515,652.96 and 490,656,747.94
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Solution
The fourth proportional to 908,344,278.12, 1,253,515,652.96 and 490,656,747.94 is: 677,106,608.79
Step by Step Solution
- Step 1: Write the proportion equation
908,344,278.12 : 1,253,515,652.96 = 490,656,747.94 : x - Step 2: Convert to fraction form
908,344,278.12/1,253,515,652.96 = 490,656,747.94/x - Step 3: Cross multiply
908,344,278.12x = 1,253,515,652.96 × 490,656,747.94 - Step 4: Simplify right side
908,344,278.12x = 615,045,913,773,239,296 - Step 5: Solve for x
x = 615,045,913,773,239,296/908,344,278.12 - Step 6: Final answer
x = 677,106,608.79
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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.