Finding the Fourth Proportional to 908,344,273.62, 1,253,515,646.74 and 490,656,743.44
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Solution
The fourth proportional to 908,344,273.62, 1,253,515,646.74 and 490,656,743.44 is: 677,106,602.58
Step by Step Solution
- Step 1: Write the proportion equation
908,344,273.62 : 1,253,515,646.74 = 490,656,743.44 : x - Step 2: Convert to fraction form
908,344,273.62/1,253,515,646.74 = 490,656,743.44/x - Step 3: Cross multiply
908,344,273.62x = 1,253,515,646.74 × 490,656,743.44 - Step 4: Simplify right side
908,344,273.62x = 615,045,905,080,533,888 - Step 5: Solve for x
x = 615,045,905,080,533,888/908,344,273.62 - Step 6: Final answer
x = 677,106,602.58
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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.