Finding the Fourth Proportional to 22,391,660.33, 30,888,639.97 and 15,410,217.44
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Solution
The fourth proportional to 22,391,660.33, 30,888,639.97 and 15,410,217.44 is: 21,257,943.87
Step by Step Solution
- Step 1: Write the proportion equation
22,391,660.33 : 30,888,639.97 = 15,410,217.44 : x - Step 2: Convert to fraction form
22,391,660.33/30,888,639.97 = 15,410,217.44/x - Step 3: Cross multiply
22,391,660.33x = 30,888,639.97 × 15,410,217.44 - Step 4: Simplify right side
22,391,660.33x = 476,000,658,402,271.19 - Step 5: Solve for x
x = 476,000,658,402,271.19/22,391,660.33 - Step 6: Final answer
x = 21,257,943.87
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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.