Finding the Fourth Proportional to 18,386,477.10, 27,579,715.65 and 15,552,125.10
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Solution
The fourth proportional to 18,386,477.10, 27,579,715.65 and 15,552,125.10 is: 23,328,187.65
Step by Step Solution
- Step 1: Write the proportion equation
18,386,477.10 : 27,579,715.65 = 15,552,125.10 : x - Step 2: Convert to fraction form
18,386,477.10/27,579,715.65 = 15,552,125.10/x - Step 3: Cross multiply
18,386,477.10x = 27,579,715.65 × 15,552,125.10 - Step 4: Simplify right side
18,386,477.10x = 428,923,188,011,227.81 - Step 5: Solve for x
x = 428,923,188,011,227.81/18,386,477.10 - Step 6: Final answer
x = 23,328,187.65
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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.