Finding the Fourth Proportional to 13,041,517.76, 17,996,399.36 and 7,239,847.68
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Solution
The fourth proportional to 13,041,517.76, 17,996,399.36 and 7,239,847.68 is: 9,990,492.87
Step by Step Solution
- Step 1: Write the proportion equation
13,041,517.76 : 17,996,399.36 = 7,239,847.68 : x - Step 2: Convert to fraction form
13,041,517.76/17,996,399.36 = 7,239,847.68/x - Step 3: Cross multiply
13,041,517.76x = 17,996,399.36 × 7,239,847.68 - Step 4: Simplify right side
13,041,517.76x = 130,291,190,154,849.47 - Step 5: Solve for x
x = 130,291,190,154,849.47/13,041,517.76 - Step 6: Final answer
x = 9,990,492.87
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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.