Finding the Fourth Proportional to 1,266,719,138.73, 1,748,072,383.68 and 702,202,589.90
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Solution
The fourth proportional to 1,266,719,138.73, 1,748,072,383.68 and 702,202,589.90 is: 969,039,558.66
Step by Step Solution
- Step 1: Write the proportion equation
1,266,719,138.73 : 1,748,072,383.68 = 702,202,589.90 : x - Step 2: Convert to fraction form
1,266,719,138.73/1,748,072,383.68 = 702,202,589.90/x - Step 3: Cross multiply
1,266,719,138.73x = 1,748,072,383.68 × 702,202,589.90 - Step 4: Simplify right side
1,266,719,138.73x = 1,227,500,955,144,022,272 - Step 5: Solve for x
x = 1,227,500,955,144,022,272/1,266,719,138.73 - Step 6: Final answer
x = 969,039,558.66
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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.