Finding the Fourth Proportional to 78,335,927.20, 117,503,890.80 and 32,882,615.20
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Solution
The fourth proportional to 78,335,927.20, 117,503,890.80 and 32,882,615.20 is: 49,323,922.80
Step by Step Solution
- Step 1: Write the proportion equation
78,335,927.20 : 117,503,890.80 = 32,882,615.20 : x - Step 2: Convert to fraction form
78,335,927.20/117,503,890.80 = 32,882,615.20/x - Step 3: Cross multiply
78,335,927.20x = 117,503,890.80 × 32,882,615.20 - Step 4: Simplify right side
78,335,927.20x = 3,863,835,225,679,220 - Step 5: Solve for x
x = 3,863,835,225,679,220/78,335,927.20 - Step 6: Final answer
x = 49,323,922.80
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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.