Finding the Fourth Proportional to 11,543,898.82, 15,923,639.38 and 7,623,690.99
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Solution
The fourth proportional to 11,543,898.82, 15,923,639.38 and 7,623,690.99 is: 10,516,109.68
Step by Step Solution
- Step 1: Write the proportion equation
11,543,898.82 : 15,923,639.38 = 7,623,690.99 : x - Step 2: Convert to fraction form
11,543,898.82/15,923,639.38 = 7,623,690.99/x - Step 3: Cross multiply
11,543,898.82x = 15,923,639.38 × 7,623,690.99 - Step 4: Simplify right side
11,543,898.82x = 121,396,906,031,196.73 - Step 5: Solve for x
x = 121,396,906,031,196.73/11,543,898.82 - Step 6: Final answer
x = 10,516,109.68
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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.