Finding the Fourth Proportional to 1,266,719,137.25, 1,748,072,381.61 and 702,202,588.38
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Solution
The fourth proportional to 1,266,719,137.25, 1,748,072,381.61 and 702,202,588.38 is: 969,039,556.56
Step by Step Solution
- Step 1: Write the proportion equation
1,266,719,137.25 : 1,748,072,381.61 = 702,202,588.38 : x - Step 2: Convert to fraction form
1,266,719,137.25/1,748,072,381.61 = 702,202,588.38/x - Step 3: Cross multiply
1,266,719,137.25x = 1,748,072,381.61 × 702,202,588.38 - Step 4: Simplify right side
1,266,719,137.25x = 1,227,500,951,042,132,992 - Step 5: Solve for x
x = 1,227,500,951,042,132,992/1,266,719,137.25 - Step 6: Final answer
x = 969,039,556.56
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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.