Finding the Fourth Proportional to 18,894,586.92, 28,346,378.09 and 6,115,091.63
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Solution
The fourth proportional to 18,894,586.92, 28,346,378.09 and 6,115,091.63 is: 9,174,093.09
Step by Step Solution
- Step 1: Write the proportion equation
18,894,586.92 : 28,346,378.09 = 6,115,091.63 : x - Step 2: Convert to fraction form
18,894,586.92/28,346,378.09 = 6,115,091.63/x - Step 3: Cross multiply
18,894,586.92x = 28,346,378.09 × 6,115,091.63 - Step 4: Simplify right side
18,894,586.92x = 173,340,699,226,667.03 - Step 5: Solve for x
x = 173,340,699,226,667.03/18,894,586.92 - Step 6: Final answer
x = 9,174,093.09
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1.5x scale
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.