Finding the Fourth Proportional to 1,259,638,732.26, 1,889,242,751.79 and 339,299,837.46
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Solution
The fourth proportional to 1,259,638,732.26, 1,889,242,751.79 and 339,299,837.46 is: 508,891,749.82
Step by Step Solution
- Step 1: Write the proportion equation
1,259,638,732.26 : 1,889,242,751.79 = 339,299,837.46 : x - Step 2: Convert to fraction form
1,259,638,732.26/1,889,242,751.79 = 339,299,837.46/x - Step 3: Cross multiply
1,259,638,732.26x = 1,889,242,751.79 × 339,299,837.46 - Step 4: Simplify right side
1,259,638,732.26x = 641,019,758,604,830,080 - Step 5: Solve for x
x = 641,019,758,604,830,080/1,259,638,732.26 - Step 6: Final answer
x = 508,891,749.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.