Finding the Fourth Proportional to 218,422,681.46, 327,635,246.99 and 72,855,843.23
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Solution
The fourth proportional to 218,422,681.46, 327,635,246.99 and 72,855,843.23 is: 109,284,173.39
Step by Step Solution
- Step 1: Write the proportion equation
218,422,681.46 : 327,635,246.99 = 72,855,843.23 : x - Step 2: Convert to fraction form
218,422,681.46/327,635,246.99 = 72,855,843.23/x - Step 3: Cross multiply
218,422,681.46x = 327,635,246.99 × 72,855,843.23 - Step 4: Simplify right side
218,422,681.46x = 23,870,142,192,327,000 - Step 5: Solve for x
x = 23,870,142,192,327,000/218,422,681.46 - Step 6: Final answer
x = 109,284,173.39
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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.