Finding the Fourth Proportional to 1,010,581,511.37, 1,394,656,029.57 and 608,821,732.18
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Solution
The fourth proportional to 1,010,581,511.37, 1,394,656,029.57 and 608,821,732.18 is: 840,206,247.75
Step by Step Solution
- Step 1: Write the proportion equation
1,010,581,511.37 : 1,394,656,029.57 = 608,821,732.18 : x - Step 2: Convert to fraction form
1,010,581,511.37/1,394,656,029.57 = 608,821,732.18/x - Step 3: Cross multiply
1,010,581,511.37x = 1,394,656,029.57 × 608,821,732.18 - Step 4: Simplify right side
1,010,581,511.37x = 849,096,899,718,088,576 - Step 5: Solve for x
x = 849,096,899,718,088,576/1,010,581,511.37 - Step 6: Final answer
x = 840,206,247.75
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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.