Finding the Fourth Proportional to 287,313,821.84, 430,970,738.48 and 68,964,163.95
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Solution
The fourth proportional to 287,313,821.84, 430,970,738.48 and 68,964,163.95 is: 103,446,247.30
Step by Step Solution
- Step 1: Write the proportion equation
287,313,821.84 : 430,970,738.48 = 68,964,163.95 : x - Step 2: Convert to fraction form
287,313,821.84/430,970,738.48 = 68,964,163.95/x - Step 3: Cross multiply
287,313,821.84x = 430,970,738.48 × 68,964,163.95 - Step 4: Simplify right side
287,313,821.84x = 29,721,536,666,187,296 - Step 5: Solve for x
x = 29,721,536,666,187,296/287,313,821.84 - Step 6: Final answer
x = 103,446,247.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.