Finding the Fourth Proportional to 13,614,243.24, 18,787,108.68 and 7,419,158.40
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Solution
The fourth proportional to 13,614,243.24, 18,787,108.68 and 7,419,158.40 is: 10,238,140.51
Step by Step Solution
- Step 1: Write the proportion equation
13,614,243.24 : 18,787,108.68 = 7,419,158.40 : x - Step 2: Convert to fraction form
13,614,243.24/18,787,108.68 = 7,419,158.40/x - Step 3: Cross multiply
13,614,243.24x = 18,787,108.68 × 7,419,158.40 - Step 4: Simplify right side
13,614,243.24x = 139,384,535,174,934.92 - Step 5: Solve for x
x = 139,384,535,174,934.92/13,614,243.24 - Step 6: Final answer
x = 10,238,140.51
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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.