Finding the Fourth Proportional to 18,927,630.98, 28,391,446.46 and 4,550,699.28
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Solution
The fourth proportional to 18,927,630.98, 28,391,446.46 and 4,550,699.28 is: 6,826,048.92
Step by Step Solution
- Step 1: Write the proportion equation
18,927,630.98 : 28,391,446.46 = 4,550,699.28 : x - Step 2: Convert to fraction form
18,927,630.98/28,391,446.46 = 4,550,699.28/x - Step 3: Cross multiply
18,927,630.98x = 28,391,446.46 × 4,550,699.28 - Step 4: Simplify right side
18,927,630.98x = 129,200,934,940,927.05 - Step 5: Solve for x
x = 129,200,934,940,927.05/18,927,630.98 - Step 6: Final answer
x = 6,826,048.92
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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.