Finding the Fourth Proportional to 18,603,313.20, 27,904,969.80 and 13,461,621.53
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Solution
The fourth proportional to 18,603,313.20, 27,904,969.80 and 13,461,621.53 is: 20,192,432.29
Step by Step Solution
- Step 1: Write the proportion equation
18,603,313.20 : 27,904,969.80 = 13,461,621.53 : x - Step 2: Convert to fraction form
18,603,313.20/27,904,969.80 = 13,461,621.53/x - Step 3: Cross multiply
18,603,313.20x = 27,904,969.80 × 13,461,621.53 - Step 4: Simplify right side
18,603,313.20x = 375,646,142,114,154.94 - Step 5: Solve for x
x = 375,646,142,114,154.94/18,603,313.20 - Step 6: Final answer
x = 20,192,432.29
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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.