Finding the Fourth Proportional to 20,117,791.16, 30,176,391.06 and 4,971,722.68
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Solution
The fourth proportional to 20,117,791.16, 30,176,391.06 and 4,971,722.68 is: 7,457,510.95
Step by Step Solution
- Step 1: Write the proportion equation
20,117,791.16 : 30,176,391.06 = 4,971,722.68 : x - Step 2: Convert to fraction form
20,117,791.16/30,176,391.06 = 4,971,722.68/x - Step 3: Cross multiply
20,117,791.16x = 30,176,391.06 × 4,971,722.68 - Step 4: Simplify right side
20,117,791.16x = 150,028,647,833,551.22 - Step 5: Solve for x
x = 150,028,647,833,551.22/20,117,791.16 - Step 6: Final answer
x = 7,457,510.95
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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.