Finding the Fourth Proportional to 18,444,861.60, 27,667,292.40 and 5,665,345.80
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Solution
The fourth proportional to 18,444,861.60, 27,667,292.40 and 5,665,345.80 is: 8,498,018.70
Step by Step Solution
- Step 1: Write the proportion equation
18,444,861.60 : 27,667,292.40 = 5,665,345.80 : x - Step 2: Convert to fraction form
18,444,861.60/27,667,292.40 = 5,665,345.80/x - Step 3: Cross multiply
18,444,861.60x = 27,667,292.40 × 5,665,345.80 - Step 4: Simplify right side
18,444,861.60x = 156,744,778,795,711.91 - Step 5: Solve for x
x = 156,744,778,795,711.91/18,444,861.60 - Step 6: Final answer
x = 8,498,018.70
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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.