Finding the Fourth Proportional to 22,176,891.99, 30,603,197.66 and 12,387,289.50
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Solution
The fourth proportional to 22,176,891.99, 30,603,197.66 and 12,387,289.50 is: 17,093,949.38
Step by Step Solution
- Step 1: Write the proportion equation
22,176,891.99 : 30,603,197.66 = 12,387,289.50 : x - Step 2: Convert to fraction form
22,176,891.99/30,603,197.66 = 12,387,289.50/x - Step 3: Cross multiply
22,176,891.99x = 30,603,197.66 × 12,387,289.50 - Step 4: Simplify right side
22,176,891.99x = 379,090,668,978,206.12 - Step 5: Solve for x
x = 379,090,668,978,206.12/22,176,891.99 - Step 6: Final answer
x = 17,093,949.38
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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.