Finding the Fourth Proportional to 71,868,768.35, 107,803,152.53 and 48,910,517.15
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Solution
The fourth proportional to 71,868,768.35, 107,803,152.53 and 48,910,517.15 is: 73,365,775.73
Step by Step Solution
- Step 1: Write the proportion equation
71,868,768.35 : 107,803,152.53 = 48,910,517.15 : x - Step 2: Convert to fraction form
71,868,768.35/107,803,152.53 = 48,910,517.15/x - Step 3: Cross multiply
71,868,768.35x = 107,803,152.53 × 48,910,517.15 - Step 4: Simplify right side
71,868,768.35x = 5,272,707,940,398,078 - Step 5: Solve for x
x = 5,272,707,940,398,078/71,868,768.35 - Step 6: Final answer
x = 73,365,775.73
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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.