Finding the Fourth Proportional to 201,865,438.74, 278,626,136.94 and 131,476,451.96
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Solution
The fourth proportional to 201,865,438.74, 278,626,136.94 and 131,476,451.96 is: 181,471,261.93
Step by Step Solution
- Step 1: Write the proportion equation
201,865,438.74 : 278,626,136.94 = 131,476,451.96 : x - Step 2: Convert to fraction form
201,865,438.74/278,626,136.94 = 131,476,451.96/x - Step 3: Cross multiply
201,865,438.74x = 278,626,136.94 × 131,476,451.96 - Step 4: Simplify right side
201,865,438.74x = 36,632,775,908,192,288 - Step 5: Solve for x
x = 36,632,775,908,192,288/201,865,438.74 - Step 6: Final answer
x = 181,471,261.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.