Finding the Fourth Proportional to 13,395,981.20, 18,486,243.24 and 7,284,356.24
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Solution
The fourth proportional to 13,395,981.20, 18,486,243.24 and 7,284,356.24 is: 10,052,296.98
Step by Step Solution
- Step 1: Write the proportion equation
13,395,981.20 : 18,486,243.24 = 7,284,356.24 : x - Step 2: Convert to fraction form
13,395,981.20/18,486,243.24 = 7,284,356.24/x - Step 3: Cross multiply
13,395,981.20x = 18,486,243.24 × 7,284,356.24 - Step 4: Simplify right side
13,395,981.20x = 134,660,381,299,451.81 - Step 5: Solve for x
x = 134,660,381,299,451.81/13,395,981.20 - Step 6: Final answer
x = 10,052,296.98
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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.