Finding the Fourth Proportional to 1,239,798,974.48, 1,710,922,431.26 and 682,882,021.62
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Solution
The fourth proportional to 1,239,798,974.48, 1,710,922,431.26 and 682,882,021.62 is: 942,377,105.28
Step by Step Solution
- Step 1: Write the proportion equation
1,239,798,974.48 : 1,710,922,431.26 = 682,882,021.62 : x - Step 2: Convert to fraction form
1,239,798,974.48/1,710,922,431.26 = 682,882,021.62/x - Step 3: Cross multiply
1,239,798,974.48x = 1,710,922,431.26 × 682,882,021.62 - Step 4: Simplify right side
1,239,798,974.48x = 1,168,358,168,693,834,240 - Step 5: Solve for x
x = 1,168,358,168,693,834,240/1,239,798,974.48 - Step 6: Final answer
x = 942,377,105.28
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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.