Finding the Fourth Proportional to 4,920,663.40, 7,383,068.70 and 2,678,410.60
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Solution
The fourth proportional to 4,920,663.40, 7,383,068.70 and 2,678,410.60 is: 4,018,744.60
Step by Step Solution
- Step 1: Write the proportion equation
4,920,663.40 : 7,383,068.70 = 2,678,410.60 : x - Step 2: Convert to fraction form
4,920,663.40/7,383,068.70 = 2,678,410.60/x - Step 3: Cross multiply
4,920,663.40x = 7,383,068.70 × 2,678,410.60 - Step 4: Simplify right side
4,920,663.40x = 19,774,889,466,608.22 - Step 5: Solve for x
x = 19,774,889,466,608.22/4,920,663.40 - Step 6: Final answer
x = 4,018,744.60
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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.