Finding the Fourth Proportional to 908,344,287.56, 1,253,515,665.99 and 490,656,757.38
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Solution
The fourth proportional to 908,344,287.56, 1,253,515,665.99 and 490,656,757.38 is: 677,106,621.82
Step by Step Solution
- Step 1: Write the proportion equation
908,344,287.56 : 1,253,515,665.99 = 490,656,757.38 : x - Step 2: Convert to fraction form
908,344,287.56/1,253,515,665.99 = 490,656,757.38/x - Step 3: Cross multiply
908,344,287.56x = 1,253,515,665.99 × 490,656,757.38 - Step 4: Simplify right side
908,344,287.56x = 615,045,931,999,684,608 - Step 5: Solve for x
x = 615,045,931,999,684,608/908,344,287.56 - Step 6: Final answer
x = 677,106,621.82
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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.