Finding the Fourth Proportional to 18,525,786.87, 25,565,735.99 and 10,265,987.12
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Solution
The fourth proportional to 18,525,786.87, 25,565,735.99 and 10,265,987.12 is: 14,167,145.41
Step by Step Solution
- Step 1: Write the proportion equation
18,525,786.87 : 25,565,735.99 = 10,265,987.12 : x - Step 2: Convert to fraction form
18,525,786.87/25,565,735.99 = 10,265,987.12/x - Step 3: Cross multiply
18,525,786.87x = 25,565,735.99 × 10,265,987.12 - Step 4: Simplify right side
18,525,786.87x = 262,457,516,386,660.41 - Step 5: Solve for x
x = 262,457,516,386,660.41/18,525,786.87 - Step 6: Final answer
x = 14,167,145.41
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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.