Finding the Fourth Proportional to 15,048,100.75, 20,767,659.75 and 8,522,890.99
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Solution
The fourth proportional to 15,048,100.75, 20,767,659.75 and 8,522,890.99 is: 11,762,314.93
Step by Step Solution
- Step 1: Write the proportion equation
15,048,100.75 : 20,767,659.75 = 8,522,890.99 : x - Step 2: Convert to fraction form
15,048,100.75/20,767,659.75 = 8,522,890.99/x - Step 3: Cross multiply
15,048,100.75x = 20,767,659.75 × 8,522,890.99 - Step 4: Simplify right side
15,048,100.75x = 177,000,500,166,660.66 - Step 5: Solve for x
x = 177,000,500,166,660.66/15,048,100.75 - Step 6: Final answer
x = 11,762,314.93
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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.