Finding the Fourth Proportional to 12,188,865.21, 18,289,288.83 and 4,902,034.08
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Solution
The fourth proportional to 12,188,865.21, 18,289,288.83 and 4,902,034.08 is: 7,355,460.55
Step by Step Solution
- Step 1: Write the proportion equation
12,188,865.21 : 18,289,288.83 = 4,902,034.08 : x - Step 2: Convert to fraction form
12,188,865.21/18,289,288.83 = 4,902,034.08/x - Step 3: Cross multiply
12,188,865.21x = 18,289,288.83 × 4,902,034.08 - Step 4: Simplify right side
12,188,865.21x = 89,654,717,143,623.31 - Step 5: Solve for x
x = 89,654,717,143,623.31/12,188,865.21 - Step 6: Final answer
x = 7,355,460.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.