Finding the Fourth Proportional to 18,111,783.12, 27,167,674.68 and 4,648,611.12
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Solution
The fourth proportional to 18,111,783.12, 27,167,674.68 and 4,648,611.12 is: 6,972,916.68
Step by Step Solution
- Step 1: Write the proportion equation
18,111,783.12 : 27,167,674.68 = 4,648,611.12 : x - Step 2: Convert to fraction form
18,111,783.12/27,167,674.68 = 4,648,611.12/x - Step 3: Cross multiply
18,111,783.12x = 27,167,674.68 × 4,648,611.12 - Step 4: Simplify right side
18,111,783.12x = 126,291,954,621,990.44 - Step 5: Solve for x
x = 126,291,954,621,990.44/18,111,783.12 - Step 6: Final answer
x = 6,972,916.68
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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.