Finding the Fourth Proportional to 18,655,347.67, 27,983,021.49 and 7,287,824.68
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Solution
The fourth proportional to 18,655,347.67, 27,983,021.49 and 7,287,824.68 is: 10,931,737.01
Step by Step Solution
- Step 1: Write the proportion equation
18,655,347.67 : 27,983,021.49 = 7,287,824.68 : x - Step 2: Convert to fraction form
18,655,347.67/27,983,021.49 = 7,287,824.68/x - Step 3: Cross multiply
18,655,347.67x = 27,983,021.49 × 7,287,824.68 - Step 4: Simplify right side
18,655,347.67x = 203,935,354,565,834.81 - Step 5: Solve for x
x = 203,935,354,565,834.81/18,655,347.67 - Step 6: Final answer
x = 10,931,737.01
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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.