Finding the Fourth Proportional to 4,920,806.70, 7,372,352.70 and 4,212,218.70
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Solution
The fourth proportional to 4,920,806.70, 7,372,352.70 and 4,212,218.70 is: 6,310,746.14
Step by Step Solution
- Step 1: Write the proportion equation
4,920,806.70 : 7,372,352.70 = 4,212,218.70 : x - Step 2: Convert to fraction form
4,920,806.70/7,372,352.70 = 4,212,218.70/x - Step 3: Cross multiply
4,920,806.70x = 7,372,352.70 × 4,212,218.70 - Step 4: Simplify right side
4,920,806.70x = 31,053,961,905,935.49 - Step 5: Solve for x
x = 31,053,961,905,935.49/4,920,806.70 - Step 6: Final answer
x = 6,310,746.14
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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.