Finding the Fourth Proportional to 13,639,278.24, 18,822,165.48 and 7,527,663
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Solution
The fourth proportional to 13,639,278.24, 18,822,165.48 and 7,527,663 is: 10,388,153.70
Step by Step Solution
- Step 1: Write the proportion equation
13,639,278.24 : 18,822,165.48 = 7,527,663 : x - Step 2: Convert to fraction form
13,639,278.24/18,822,165.48 = 7,527,663/x - Step 3: Cross multiply
13,639,278.24x = 18,822,165.48 × 7,527,663 - Step 4: Simplify right side
13,639,278.24x = 141,686,918,663,673.25 - Step 5: Solve for x
x = 141,686,918,663,673.25/13,639,278.24 - Step 6: Final answer
x = 10,388,153.70
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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.